Home / 20,318.48-28,041.62-11,704.97

Finding the Fourth Proportional to 20,318.48, 28,041.62 and 11,704.97

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Solution

The fourth proportional to 20,318.48, 28,041.62 and 11,704.97 is: 16,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.48 : 28,041.62 = 11,704.97 : x
  2. Step 2: Convert to fraction form
    20,318.48/28,041.62 = 11,704.97/x
  3. Step 3: Cross multiply
    20,318.48x = 28,041.62 × 11,704.97
  4. Step 4: Simplify right side
    20,318.48x = 328,226,122.12
  5. Step 5: Solve for x
    x = 328,226,122.12/20,318.48
  6. Step 6: Final answer
    x = 16,154.07

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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.