Home / 42,456.85-63,685.20-11,292.10

Finding the Fourth Proportional to 42,456.85, 63,685.20 and 11,292.10

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Solution

The fourth proportional to 42,456.85, 63,685.20 and 11,292.10 is: 16,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,456.85 : 63,685.20 = 11,292.10 : x
  2. Step 2: Convert to fraction form
    42,456.85/63,685.20 = 11,292.10/x
  3. Step 3: Cross multiply
    42,456.85x = 63,685.20 × 11,292.10
  4. Step 4: Simplify right side
    42,456.85x = 719,139,646.92
  5. Step 5: Solve for x
    x = 719,139,646.92/42,456.85
  6. Step 6: Final answer
    x = 16,938.13

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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.