Home / 28,174.91-38,869.25-16,231.14

Finding the Fourth Proportional to 28,174.91, 38,869.25 and 16,231.14

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Solution

The fourth proportional to 28,174.91, 38,869.25 and 16,231.14 is: 22,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.91 : 38,869.25 = 16,231.14 : x
  2. Step 2: Convert to fraction form
    28,174.91/38,869.25 = 16,231.14/x
  3. Step 3: Cross multiply
    28,174.91x = 38,869.25 × 16,231.14
  4. Step 4: Simplify right side
    28,174.91x = 630,892,157.29
  5. Step 5: Solve for x
    x = 630,892,157.29/28,174.91
  6. Step 6: Final answer
    x = 22,391.99

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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.