Home / 38,291.28-57,402.36-13,661.52

Finding the Fourth Proportional to 38,291.28, 57,402.36 and 13,661.52

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Solution

The fourth proportional to 38,291.28, 57,402.36 and 13,661.52 is: 20,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,291.28 : 57,402.36 = 13,661.52 : x
  2. Step 2: Convert to fraction form
    38,291.28/57,402.36 = 13,661.52/x
  3. Step 3: Cross multiply
    38,291.28x = 57,402.36 × 13,661.52
  4. Step 4: Simplify right side
    38,291.28x = 784,203,489.19
  5. Step 5: Solve for x
    x = 784,203,489.19/38,291.28
  6. Step 6: Final answer
    x = 20,479.95

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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.