Home / 28,207.76-38,925.20-16,270.38

Finding the Fourth Proportional to 28,207.76, 38,925.20 and 16,270.38

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Solution

The fourth proportional to 28,207.76, 38,925.20 and 16,270.38 is: 22,452.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.76 : 38,925.20 = 16,270.38 : x
  2. Step 2: Convert to fraction form
    28,207.76/38,925.20 = 16,270.38/x
  3. Step 3: Cross multiply
    28,207.76x = 38,925.20 × 16,270.38
  4. Step 4: Simplify right side
    28,207.76x = 633,327,836.25
  5. Step 5: Solve for x
    x = 633,327,836.25/28,207.76
  6. Step 6: Final answer
    x = 22,452.26

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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.