Home / 38,147.09-57,219.66-13,184.78

Finding the Fourth Proportional to 38,147.09, 57,219.66 and 13,184.78

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Solution

The fourth proportional to 38,147.09, 57,219.66 and 13,184.78 is: 19,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.09 : 57,219.66 = 13,184.78 : x
  2. Step 2: Convert to fraction form
    38,147.09/57,219.66 = 13,184.78/x
  3. Step 3: Cross multiply
    38,147.09x = 57,219.66 × 13,184.78
  4. Step 4: Simplify right side
    38,147.09x = 754,428,342.68
  5. Step 5: Solve for x
    x = 754,428,342.68/38,147.09
  6. Step 6: Final answer
    x = 19,776.83

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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.