Home / 42,427.11-63,654.50-20,237.61

Finding the Fourth Proportional to 42,427.11, 63,654.50 and 20,237.61

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Solution

The fourth proportional to 42,427.11, 63,654.50 and 20,237.61 is: 30,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,427.11 : 63,654.50 = 20,237.61 : x
  2. Step 2: Convert to fraction form
    42,427.11/63,654.50 = 20,237.61/x
  3. Step 3: Cross multiply
    42,427.11x = 63,654.50 × 20,237.61
  4. Step 4: Simplify right side
    42,427.11x = 1,288,214,945.75
  5. Step 5: Solve for x
    x = 1,288,214,945.75/42,427.11
  6. Step 6: Final answer
    x = 30,363.01

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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.