Home / 28,249.28-38,989.68-16,314.56

Finding the Fourth Proportional to 28,249.28, 38,989.68 and 16,314.56

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Solution

The fourth proportional to 28,249.28, 38,989.68 and 16,314.56 is: 22,517.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.28 : 38,989.68 = 16,314.56 : x
  2. Step 2: Convert to fraction form
    28,249.28/38,989.68 = 16,314.56/x
  3. Step 3: Cross multiply
    28,249.28x = 38,989.68 × 16,314.56
  4. Step 4: Simplify right side
    28,249.28x = 636,099,473.74
  5. Step 5: Solve for x
    x = 636,099,473.74/28,249.28
  6. Step 6: Final answer
    x = 22,517.37

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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.