Home / 31,772.21-47,658.31-10,990.85

Finding the Fourth Proportional to 31,772.21, 47,658.31 and 10,990.85

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Solution

The fourth proportional to 31,772.21, 47,658.31 and 10,990.85 is: 16,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.21 : 47,658.31 = 10,990.85 : x
  2. Step 2: Convert to fraction form
    31,772.21/47,658.31 = 10,990.85/x
  3. Step 3: Cross multiply
    31,772.21x = 47,658.31 × 10,990.85
  4. Step 4: Simplify right side
    31,772.21x = 523,805,070.69
  5. Step 5: Solve for x
    x = 523,805,070.69/31,772.21
  6. Step 6: Final answer
    x = 16,486.27

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Double scale
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Similar ratio
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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.