Home / 42,122.30-63,152.26-19,909.73

Finding the Fourth Proportional to 42,122.30, 63,152.26 and 19,909.73

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Solution

The fourth proportional to 42,122.30, 63,152.26 and 19,909.73 is: 29,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.30 : 63,152.26 = 19,909.73 : x
  2. Step 2: Convert to fraction form
    42,122.30/63,152.26 = 19,909.73/x
  3. Step 3: Cross multiply
    42,122.30x = 63,152.26 × 19,909.73
  4. Step 4: Simplify right side
    42,122.30x = 1,257,344,553.60
  5. Step 5: Solve for x
    x = 1,257,344,553.60/42,122.30
  6. Step 6: Final answer
    x = 29,849.86

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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.