Home / 28,519.76-39,356.28-15,944.48

Finding the Fourth Proportional to 28,519.76, 39,356.28 and 15,944.48

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Solution

The fourth proportional to 28,519.76, 39,356.28 and 15,944.48 is: 22,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.76 : 39,356.28 = 15,944.48 : x
  2. Step 2: Convert to fraction form
    28,519.76/39,356.28 = 15,944.48/x
  3. Step 3: Cross multiply
    28,519.76x = 39,356.28 × 15,944.48
  4. Step 4: Simplify right side
    28,519.76x = 627,515,419.33
  5. Step 5: Solve for x
    x = 627,515,419.33/28,519.76
  6. Step 6: Final answer
    x = 22,002.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.