Home / 42,639.24-63,961.02-11,474.76

Finding the Fourth Proportional to 42,639.24, 63,961.02 and 11,474.76

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Solution

The fourth proportional to 42,639.24, 63,961.02 and 11,474.76 is: 17,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.24 : 63,961.02 = 11,474.76 : x
  2. Step 2: Convert to fraction form
    42,639.24/63,961.02 = 11,474.76/x
  3. Step 3: Cross multiply
    42,639.24x = 63,961.02 × 11,474.76
  4. Step 4: Simplify right side
    42,639.24x = 733,937,353.86
  5. Step 5: Solve for x
    x = 733,937,353.86/42,639.24
  6. Step 6: Final answer
    x = 17,212.72

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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.