Home / 34,181.27-47,157-21,412.23

Finding the Fourth Proportional to 34,181.27, 47,157 and 21,412.23

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Solution

The fourth proportional to 34,181.27, 47,157 and 21,412.23 is: 29,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,181.27 : 47,157 = 21,412.23 : x
  2. Step 2: Convert to fraction form
    34,181.27/47,157 = 21,412.23/x
  3. Step 3: Cross multiply
    34,181.27x = 47,157 × 21,412.23
  4. Step 4: Simplify right side
    34,181.27x = 1,009,736,530.11
  5. Step 5: Solve for x
    x = 1,009,736,530.11/34,181.27
  6. Step 6: Final answer
    x = 29,540.64

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Half scale
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Double scale
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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.