Home / 20,575.91-28,395.80-11,626.30

Finding the Fourth Proportional to 20,575.91, 28,395.80 and 11,626.30

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Solution

The fourth proportional to 20,575.91, 28,395.80 and 11,626.30 is: 16,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.91 : 28,395.80 = 11,626.30 : x
  2. Step 2: Convert to fraction form
    20,575.91/28,395.80 = 11,626.30/x
  3. Step 3: Cross multiply
    20,575.91x = 28,395.80 × 11,626.30
  4. Step 4: Simplify right side
    20,575.91x = 330,138,039.76
  5. Step 5: Solve for x
    x = 330,138,039.76/20,575.91
  6. Step 6: Final answer
    x = 16,044.88

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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.