Home / 31,989.72-47,984.58-11,213.28

Finding the Fourth Proportional to 31,989.72, 47,984.58 and 11,213.28

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Solution

The fourth proportional to 31,989.72, 47,984.58 and 11,213.28 is: 16,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.72 : 47,984.58 = 11,213.28 : x
  2. Step 2: Convert to fraction form
    31,989.72/47,984.58 = 11,213.28/x
  3. Step 3: Cross multiply
    31,989.72x = 47,984.58 × 11,213.28
  4. Step 4: Simplify right side
    31,989.72x = 538,064,531.22
  5. Step 5: Solve for x
    x = 538,064,531.22/31,989.72
  6. Step 6: Final answer
    x = 16,819.92

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Similar ratio
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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.