Home / 42,479.12-63,704.70-14,391.96

Finding the Fourth Proportional to 42,479.12, 63,704.70 and 14,391.96

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Solution

The fourth proportional to 42,479.12, 63,704.70 and 14,391.96 is: 21,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,479.12 : 63,704.70 = 14,391.96 : x
  2. Step 2: Convert to fraction form
    42,479.12/63,704.70 = 14,391.96/x
  3. Step 3: Cross multiply
    42,479.12x = 63,704.70 × 14,391.96
  4. Step 4: Simplify right side
    42,479.12x = 916,835,494.21
  5. Step 5: Solve for x
    x = 916,835,494.21/42,479.12
  6. Step 6: Final answer
    x = 21,583.21

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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.