Home / 28,147.68-38,839.97-16,049.72

Finding the Fourth Proportional to 28,147.68, 38,839.97 and 16,049.72

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Solution

The fourth proportional to 28,147.68, 38,839.97 and 16,049.72 is: 22,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.68 : 38,839.97 = 16,049.72 : x
  2. Step 2: Convert to fraction form
    28,147.68/38,839.97 = 16,049.72/x
  3. Step 3: Cross multiply
    28,147.68x = 38,839.97 × 16,049.72
  4. Step 4: Simplify right side
    28,147.68x = 623,370,368.86
  5. Step 5: Solve for x
    x = 623,370,368.86/28,147.68
  6. Step 6: Final answer
    x = 22,146.42

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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.