Home / 38,275.28-57,378.32-13,645.52

Finding the Fourth Proportional to 38,275.28, 57,378.32 and 13,645.52

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Solution

The fourth proportional to 38,275.28, 57,378.32 and 13,645.52 is: 20,455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,275.28 : 57,378.32 = 13,645.52 : x
  2. Step 2: Convert to fraction form
    38,275.28/57,378.32 = 13,645.52/x
  3. Step 3: Cross multiply
    38,275.28x = 57,378.32 × 13,645.52
  4. Step 4: Simplify right side
    38,275.28x = 782,957,013.13
  5. Step 5: Solve for x
    x = 782,957,013.13/38,275.28
  6. Step 6: Final answer
    x = 20,455.94

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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.