Home / 42,001.40-57,962.10-23,138.60

Finding the Fourth Proportional to 42,001.40, 57,962.10 and 23,138.60

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Solution

The fourth proportional to 42,001.40, 57,962.10 and 23,138.60 is: 31,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.40 : 57,962.10 = 23,138.60 : x
  2. Step 2: Convert to fraction form
    42,001.40/57,962.10 = 23,138.60/x
  3. Step 3: Cross multiply
    42,001.40x = 57,962.10 × 23,138.60
  4. Step 4: Simplify right side
    42,001.40x = 1,341,161,847.06
  5. Step 5: Solve for x
    x = 1,341,161,847.06/42,001.40
  6. Step 6: Final answer
    x = 31,931.36

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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.