Home / 29,089.77-40,142.81-17,778.21

Finding the Fourth Proportional to 29,089.77, 40,142.81 and 17,778.21

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Solution

The fourth proportional to 29,089.77, 40,142.81 and 17,778.21 is: 24,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,089.77 : 40,142.81 = 17,778.21 : x
  2. Step 2: Convert to fraction form
    29,089.77/40,142.81 = 17,778.21/x
  3. Step 3: Cross multiply
    29,089.77x = 40,142.81 × 17,778.21
  4. Step 4: Simplify right side
    29,089.77x = 713,667,217.28
  5. Step 5: Solve for x
    x = 713,667,217.28/29,089.77
  6. Step 6: Final answer
    x = 24,533.27

Related Problems

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Half scale
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Double scale
Find fourth proportional to 29,090.77, 40,144.18 and 17,779.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.