Home / 28,158.38-38,867.21-16,229.66

Finding the Fourth Proportional to 28,158.38, 38,867.21 and 16,229.66

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Solution

The fourth proportional to 28,158.38, 38,867.21 and 16,229.66 is: 22,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.38 : 38,867.21 = 16,229.66 : x
  2. Step 2: Convert to fraction form
    28,158.38/38,867.21 = 16,229.66/x
  3. Step 3: Cross multiply
    28,158.38x = 38,867.21 × 16,229.66
  4. Step 4: Simplify right side
    28,158.38x = 630,801,603.45
  5. Step 5: Solve for x
    x = 630,801,603.45/28,158.38
  6. Step 6: Final answer
    x = 22,401.91

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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.