Home / 42,235.92-63,344.52-12,649.86

Finding the Fourth Proportional to 42,235.92, 63,344.52 and 12,649.86

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Solution

The fourth proportional to 42,235.92, 63,344.52 and 12,649.86 is: 18,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,235.92 : 63,344.52 = 12,649.86 : x
  2. Step 2: Convert to fraction form
    42,235.92/63,344.52 = 12,649.86/x
  3. Step 3: Cross multiply
    42,235.92x = 63,344.52 × 12,649.86
  4. Step 4: Simplify right side
    42,235.92x = 801,299,309.77
  5. Step 5: Solve for x
    x = 801,299,309.77/42,235.92
  6. Step 6: Final answer
    x = 18,971.99

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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.