Home / 38,122.85-57,174.29-11,461.70

Finding the Fourth Proportional to 38,122.85, 57,174.29 and 11,461.70

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Solution

The fourth proportional to 38,122.85, 57,174.29 and 11,461.70 is: 17,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.85 : 57,174.29 = 11,461.70 : x
  2. Step 2: Convert to fraction form
    38,122.85/57,174.29 = 11,461.70/x
  3. Step 3: Cross multiply
    38,122.85x = 57,174.29 × 11,461.70
  4. Step 4: Simplify right side
    38,122.85x = 655,314,688.30
  5. Step 5: Solve for x
    x = 655,314,688.30/38,122.85
  6. Step 6: Final answer
    x = 17,189.55

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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.