Home / 31,534.12-47,307.90-10,755.88

Finding the Fourth Proportional to 31,534.12, 47,307.90 and 10,755.88

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Solution

The fourth proportional to 31,534.12, 47,307.90 and 10,755.88 is: 16,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.12 : 47,307.90 = 10,755.88 : x
  2. Step 2: Convert to fraction form
    31,534.12/47,307.90 = 10,755.88/x
  3. Step 3: Cross multiply
    31,534.12x = 47,307.90 × 10,755.88
  4. Step 4: Simplify right side
    31,534.12x = 508,838,095.45
  5. Step 5: Solve for x
    x = 508,838,095.45/31,534.12
  6. Step 6: Final answer
    x = 16,136.11

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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.