Home / 38,001.11-57,002.79-13,040.78

Finding the Fourth Proportional to 38,001.11, 57,002.79 and 13,040.78

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Solution

The fourth proportional to 38,001.11, 57,002.79 and 13,040.78 is: 19,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,001.11 : 57,002.79 = 13,040.78 : x
  2. Step 2: Convert to fraction form
    38,001.11/57,002.79 = 13,040.78/x
  3. Step 3: Cross multiply
    38,001.11x = 57,002.79 × 13,040.78
  4. Step 4: Simplify right side
    38,001.11x = 743,360,843.78
  5. Step 5: Solve for x
    x = 743,360,843.78/38,001.11
  6. Step 6: Final answer
    x = 19,561.56

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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.