Home / 29,090.28-40,143.51-17,778.70

Finding the Fourth Proportional to 29,090.28, 40,143.51 and 17,778.70

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Solution

The fourth proportional to 29,090.28, 40,143.51 and 17,778.70 is: 24,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,090.28 : 40,143.51 = 17,778.70 : x
  2. Step 2: Convert to fraction form
    29,090.28/40,143.51 = 17,778.70/x
  3. Step 3: Cross multiply
    29,090.28x = 40,143.51 × 17,778.70
  4. Step 4: Simplify right side
    29,090.28x = 713,699,421.24
  5. Step 5: Solve for x
    x = 713,699,421.24/29,090.28
  6. Step 6: Final answer
    x = 24,533.95

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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.