Home / 31,989.88-47,984.82-11,213.38

Finding the Fourth Proportional to 31,989.88, 47,984.82 and 11,213.38

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Solution

The fourth proportional to 31,989.88, 47,984.82 and 11,213.38 is: 16,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.88 : 47,984.82 = 11,213.38 : x
  2. Step 2: Convert to fraction form
    31,989.88/47,984.82 = 11,213.38/x
  3. Step 3: Cross multiply
    31,989.88x = 47,984.82 × 11,213.38
  4. Step 4: Simplify right side
    31,989.88x = 538,072,020.89
  5. Step 5: Solve for x
    x = 538,072,020.89/31,989.88
  6. Step 6: Final answer
    x = 16,820.07

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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.