Home / 20,736.29-28,615.92-11,304.92

Finding the Fourth Proportional to 20,736.29, 28,615.92 and 11,304.92

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Solution

The fourth proportional to 20,736.29, 28,615.92 and 11,304.92 is: 15,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.29 : 28,615.92 = 11,304.92 : x
  2. Step 2: Convert to fraction form
    20,736.29/28,615.92 = 11,304.92/x
  3. Step 3: Cross multiply
    20,736.29x = 28,615.92 × 11,304.92
  4. Step 4: Simplify right side
    20,736.29x = 323,500,543.25
  5. Step 5: Solve for x
    x = 323,500,543.25/20,736.29
  6. Step 6: Final answer
    x = 15,600.70

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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.