Home / 20,589.99-28,414.76-11,637.87

Finding the Fourth Proportional to 20,589.99, 28,414.76 and 11,637.87

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Solution

The fourth proportional to 20,589.99, 28,414.76 and 11,637.87 is: 16,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.99 : 28,414.76 = 11,637.87 : x
  2. Step 2: Convert to fraction form
    20,589.99/28,414.76 = 11,637.87/x
  3. Step 3: Cross multiply
    20,589.99x = 28,414.76 × 11,637.87
  4. Step 4: Simplify right side
    20,589.99x = 330,687,282.96
  5. Step 5: Solve for x
    x = 330,687,282.96/20,589.99
  6. Step 6: Final answer
    x = 16,060.58

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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.