Home / 28,204.18-38,921.76-16,874.15

Finding the Fourth Proportional to 28,204.18, 38,921.76 and 16,874.15

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Solution

The fourth proportional to 28,204.18, 38,921.76 and 16,874.15 is: 23,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.18 : 38,921.76 = 16,874.15 : x
  2. Step 2: Convert to fraction form
    28,204.18/38,921.76 = 16,874.15/x
  3. Step 3: Cross multiply
    28,204.18x = 38,921.76 × 16,874.15
  4. Step 4: Simplify right side
    28,204.18x = 656,771,421.90
  5. Step 5: Solve for x
    x = 656,771,421.90/28,204.18
  6. Step 6: Final answer
    x = 23,286.32

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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.