Home / 42,020.91-63,042.30-15,727.74

Finding the Fourth Proportional to 42,020.91, 63,042.30 and 15,727.74

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Solution

The fourth proportional to 42,020.91, 63,042.30 and 15,727.74 is: 23,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,020.91 : 63,042.30 = 15,727.74 : x
  2. Step 2: Convert to fraction form
    42,020.91/63,042.30 = 15,727.74/x
  3. Step 3: Cross multiply
    42,020.91x = 63,042.30 × 15,727.74
  4. Step 4: Simplify right side
    42,020.91x = 991,512,903.40
  5. Step 5: Solve for x
    x = 991,512,903.40/42,020.91
  6. Step 6: Final answer
    x = 23,595.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.