Home / 38,256.74-57,385.12-11,961.72

Finding the Fourth Proportional to 38,256.74, 57,385.12 and 11,961.72

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Solution

The fourth proportional to 38,256.74, 57,385.12 and 11,961.72 is: 17,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,256.74 : 57,385.12 = 11,961.72 : x
  2. Step 2: Convert to fraction form
    38,256.74/57,385.12 = 11,961.72/x
  3. Step 3: Cross multiply
    38,256.74x = 57,385.12 × 11,961.72
  4. Step 4: Simplify right side
    38,256.74x = 686,424,737.61
  5. Step 5: Solve for x
    x = 686,424,737.61/38,256.74
  6. Step 6: Final answer
    x = 17,942.58

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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.