Home / 20,523.20-28,322.22-11,569.92

Finding the Fourth Proportional to 20,523.20, 28,322.22 and 11,569.92

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Solution

The fourth proportional to 20,523.20, 28,322.22 and 11,569.92 is: 15,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.20 : 28,322.22 = 11,569.92 : x
  2. Step 2: Convert to fraction form
    20,523.20/28,322.22 = 11,569.92/x
  3. Step 3: Cross multiply
    20,523.20x = 28,322.22 × 11,569.92
  4. Step 4: Simplify right side
    20,523.20x = 327,685,819.62
  5. Step 5: Solve for x
    x = 327,685,819.62/20,523.20
  6. Step 6: Final answer
    x = 15,966.60

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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.