Home / 31,908.85-47,885.14-11,132.35

Finding the Fourth Proportional to 31,908.85, 47,885.14 and 11,132.35

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Solution

The fourth proportional to 31,908.85, 47,885.14 and 11,132.35 is: 16,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,908.85 : 47,885.14 = 11,132.35 : x
  2. Step 2: Convert to fraction form
    31,908.85/47,885.14 = 11,132.35/x
  3. Step 3: Cross multiply
    31,908.85x = 47,885.14 × 11,132.35
  4. Step 4: Simplify right side
    31,908.85x = 533,073,990.74
  5. Step 5: Solve for x
    x = 533,073,990.74/31,908.85
  6. Step 6: Final answer
    x = 16,706.15

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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.