Home / 28,247.28-38,986.92-16,312.56

Finding the Fourth Proportional to 28,247.28, 38,986.92 and 16,312.56

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Solution

The fourth proportional to 28,247.28, 38,986.92 and 16,312.56 is: 22,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.28 : 38,986.92 = 16,312.56 : x
  2. Step 2: Convert to fraction form
    28,247.28/38,986.92 = 16,312.56/x
  3. Step 3: Cross multiply
    28,247.28x = 38,986.92 × 16,312.56
  4. Step 4: Simplify right side
    28,247.28x = 635,976,471.72
  5. Step 5: Solve for x
    x = 635,976,471.72/28,247.28
  6. Step 6: Final answer
    x = 22,514.61

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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.