Home / 20,566.23-28,381.68-11,134.77

Finding the Fourth Proportional to 20,566.23, 28,381.68 and 11,134.77

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Solution

The fourth proportional to 20,566.23, 28,381.68 and 11,134.77 is: 15,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.23 : 28,381.68 = 11,134.77 : x
  2. Step 2: Convert to fraction form
    20,566.23/28,381.68 = 11,134.77/x
  3. Step 3: Cross multiply
    20,566.23x = 28,381.68 × 11,134.77
  4. Step 4: Simplify right side
    20,566.23x = 316,023,479.01
  5. Step 5: Solve for x
    x = 316,023,479.01/20,566.23
  6. Step 6: Final answer
    x = 15,366.14

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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.