Home / 38,089.06-57,133.68-13,129.72

Finding the Fourth Proportional to 38,089.06, 57,133.68 and 13,129.72

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Solution

The fourth proportional to 38,089.06, 57,133.68 and 13,129.72 is: 19,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.06 : 57,133.68 = 13,129.72 : x
  2. Step 2: Convert to fraction form
    38,089.06/57,133.68 = 13,129.72/x
  3. Step 3: Cross multiply
    38,089.06x = 57,133.68 × 13,129.72
  4. Step 4: Simplify right side
    38,089.06x = 750,149,220.97
  5. Step 5: Solve for x
    x = 750,149,220.97/38,089.06
  6. Step 6: Final answer
    x = 19,694.61

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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.