Home / 31,691.10-47,523.88-11,958.91

Finding the Fourth Proportional to 31,691.10, 47,523.88 and 11,958.91

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Solution

The fourth proportional to 31,691.10, 47,523.88 and 11,958.91 is: 17,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,691.10 : 47,523.88 = 11,958.91 : x
  2. Step 2: Convert to fraction form
    31,691.10/47,523.88 = 11,958.91/x
  3. Step 3: Cross multiply
    31,691.10x = 47,523.88 × 11,958.91
  4. Step 4: Simplify right side
    31,691.10x = 568,333,803.77
  5. Step 5: Solve for x
    x = 568,333,803.77/31,691.10
  6. Step 6: Final answer
    x = 17,933.55

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1.5x scale

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.