Home / 20,593.61-28,419.29-11,162.09

Finding the Fourth Proportional to 20,593.61, 28,419.29 and 11,162.09

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Solution

The fourth proportional to 20,593.61, 28,419.29 and 11,162.09 is: 15,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.61 : 28,419.29 = 11,162.09 : x
  2. Step 2: Convert to fraction form
    20,593.61/28,419.29 = 11,162.09/x
  3. Step 3: Cross multiply
    20,593.61x = 28,419.29 × 11,162.09
  4. Step 4: Simplify right side
    20,593.61x = 317,218,616.91
  5. Step 5: Solve for x
    x = 317,218,616.91/20,593.61
  6. Step 6: Final answer
    x = 15,403.74

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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.