Home / 28,156.38-38,864.45-16,227.66

Finding the Fourth Proportional to 28,156.38, 38,864.45 and 16,227.66

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Solution

The fourth proportional to 28,156.38, 38,864.45 and 16,227.66 is: 22,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.38 : 38,864.45 = 16,227.66 : x
  2. Step 2: Convert to fraction form
    28,156.38/38,864.45 = 16,227.66/x
  3. Step 3: Cross multiply
    28,156.38x = 38,864.45 × 16,227.66
  4. Step 4: Simplify right side
    28,156.38x = 630,679,080.69
  5. Step 5: Solve for x
    x = 630,679,080.69/28,156.38
  6. Step 6: Final answer
    x = 22,399.15

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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.