Home / 31,680.24-47,516.04-8,304.72

Finding the Fourth Proportional to 31,680.24, 47,516.04 and 8,304.72

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Solution

The fourth proportional to 31,680.24, 47,516.04 and 8,304.72 is: 12,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.24 : 47,516.04 = 8,304.72 : x
  2. Step 2: Convert to fraction form
    31,680.24/47,516.04 = 8,304.72/x
  3. Step 3: Cross multiply
    31,680.24x = 47,516.04 × 8,304.72
  4. Step 4: Simplify right side
    31,680.24x = 394,607,407.71
  5. Step 5: Solve for x
    x = 394,607,407.71/31,680.24
  6. Step 6: Final answer
    x = 12,455.95

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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.