Home / 42,001.60-57,961.92-23,138.56

Finding the Fourth Proportional to 42,001.60, 57,961.92 and 23,138.56

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Solution

The fourth proportional to 42,001.60, 57,961.92 and 23,138.56 is: 31,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.60 : 57,961.92 = 23,138.56 : x
  2. Step 2: Convert to fraction form
    42,001.60/57,961.92 = 23,138.56/x
  3. Step 3: Cross multiply
    42,001.60x = 57,961.92 × 23,138.56
  4. Step 4: Simplify right side
    42,001.60x = 1,341,155,363.64
  5. Step 5: Solve for x
    x = 1,341,155,363.64/42,001.60
  6. Step 6: Final answer
    x = 31,931.05

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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.