Home / 20,296.11-28,008.08-11,343.68

Finding the Fourth Proportional to 20,296.11, 28,008.08 and 11,343.68

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Solution

The fourth proportional to 20,296.11, 28,008.08 and 11,343.68 is: 15,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.11 : 28,008.08 = 11,343.68 : x
  2. Step 2: Convert to fraction form
    20,296.11/28,008.08 = 11,343.68/x
  3. Step 3: Cross multiply
    20,296.11x = 28,008.08 × 11,343.68
  4. Step 4: Simplify right side
    20,296.11x = 317,714,500.18
  5. Step 5: Solve for x
    x = 317,714,500.18/20,296.11
  6. Step 6: Final answer
    x = 15,653.96

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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.