Home / 42,001.60-57,961.56-23,139.40

Finding the Fourth Proportional to 42,001.60, 57,961.56 and 23,139.40

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Solution

The fourth proportional to 42,001.60, 57,961.56 and 23,139.40 is: 31,932.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.60 : 57,961.56 = 23,139.40 : x
  2. Step 2: Convert to fraction form
    42,001.60/57,961.56 = 23,139.40/x
  3. Step 3: Cross multiply
    42,001.60x = 57,961.56 × 23,139.40
  4. Step 4: Simplify right side
    42,001.60x = 1,341,195,721.46
  5. Step 5: Solve for x
    x = 1,341,195,721.46/42,001.60
  6. Step 6: Final answer
    x = 31,932.02

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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.