Home / 42,400.60-63,600.90-11,235.85

Finding the Fourth Proportional to 42,400.60, 63,600.90 and 11,235.85

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Solution

The fourth proportional to 42,400.60, 63,600.90 and 11,235.85 is: 16,853.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.60 : 63,600.90 = 11,235.85 : x
  2. Step 2: Convert to fraction form
    42,400.60/63,600.90 = 11,235.85/x
  3. Step 3: Cross multiply
    42,400.60x = 63,600.90 × 11,235.85
  4. Step 4: Simplify right side
    42,400.60x = 714,610,172.27
  5. Step 5: Solve for x
    x = 714,610,172.27/42,400.60
  6. Step 6: Final answer
    x = 16,853.78

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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.