Home / 38,139.52-57,174.24-13,173.76

Finding the Fourth Proportional to 38,139.52, 57,174.24 and 13,173.76

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Solution

The fourth proportional to 38,139.52, 57,174.24 and 13,173.76 is: 19,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.52 : 57,174.24 = 13,173.76 : x
  2. Step 2: Convert to fraction form
    38,139.52/57,174.24 = 13,173.76/x
  3. Step 3: Cross multiply
    38,139.52x = 57,174.24 × 13,173.76
  4. Step 4: Simplify right side
    38,139.52x = 753,199,715.94
  5. Step 5: Solve for x
    x = 753,199,715.94/38,139.52
  6. Step 6: Final answer
    x = 19,748.54

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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.