Home / 38,129.74-57,203.66-13,169.99

Finding the Fourth Proportional to 38,129.74, 57,203.66 and 13,169.99

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Solution

The fourth proportional to 38,129.74, 57,203.66 and 13,169.99 is: 19,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.74 : 57,203.66 = 13,169.99 : x
  2. Step 2: Convert to fraction form
    38,129.74/57,203.66 = 13,169.99/x
  3. Step 3: Cross multiply
    38,129.74x = 57,203.66 × 13,169.99
  4. Step 4: Simplify right side
    38,129.74x = 753,371,806.10
  5. Step 5: Solve for x
    x = 753,371,806.10/38,129.74
  6. Step 6: Final answer
    x = 19,758.12

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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.