Home / 31,707.90-47,520.59-12,966.53

Finding the Fourth Proportional to 31,707.90, 47,520.59 and 12,966.53

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Solution

The fourth proportional to 31,707.90, 47,520.59 and 12,966.53 is: 19,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,707.90 : 47,520.59 = 12,966.53 : x
  2. Step 2: Convert to fraction form
    31,707.90/47,520.59 = 12,966.53/x
  3. Step 3: Cross multiply
    31,707.90x = 47,520.59 × 12,966.53
  4. Step 4: Simplify right side
    31,707.90x = 616,176,853.42
  5. Step 5: Solve for x
    x = 616,176,853.42/31,707.90
  6. Step 6: Final answer
    x = 19,432.91

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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.