Home / 28,169.34-38,874.24-16,230.66

Finding the Fourth Proportional to 28,169.34, 38,874.24 and 16,230.66

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Solution

The fourth proportional to 28,169.34, 38,874.24 and 16,230.66 is: 22,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.34 : 38,874.24 = 16,230.66 : x
  2. Step 2: Convert to fraction form
    28,169.34/38,874.24 = 16,230.66/x
  3. Step 3: Cross multiply
    28,169.34x = 38,874.24 × 16,230.66
  4. Step 4: Simplify right side
    28,169.34x = 630,954,572.20
  5. Step 5: Solve for x
    x = 630,954,572.20/28,169.34
  6. Step 6: Final answer
    x = 22,398.63

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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.