Home / 38,213.34-57,331.53-11,920.86

Finding the Fourth Proportional to 38,213.34, 57,331.53 and 11,920.86

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Solution

The fourth proportional to 38,213.34, 57,331.53 and 11,920.86 is: 17,884.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,213.34 : 57,331.53 = 11,920.86 : x
  2. Step 2: Convert to fraction form
    38,213.34/57,331.53 = 11,920.86/x
  3. Step 3: Cross multiply
    38,213.34x = 57,331.53 × 11,920.86
  4. Step 4: Simplify right side
    38,213.34x = 683,441,142.72
  5. Step 5: Solve for x
    x = 683,441,142.72/38,213.34
  6. Step 6: Final answer
    x = 17,884.88

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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.