Home / 42,349.60-63,503.86-12,761.92

Finding the Fourth Proportional to 42,349.60, 63,503.86 and 12,761.92

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Solution

The fourth proportional to 42,349.60, 63,503.86 and 12,761.92 is: 19,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,349.60 : 63,503.86 = 12,761.92 : x
  2. Step 2: Convert to fraction form
    42,349.60/63,503.86 = 12,761.92/x
  3. Step 3: Cross multiply
    42,349.60x = 63,503.86 × 12,761.92
  4. Step 4: Simplify right side
    42,349.60x = 810,431,181.01
  5. Step 5: Solve for x
    x = 810,431,181.01/42,349.60
  6. Step 6: Final answer
    x = 19,136.69

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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.