Home / 20,736.33-28,616.15-11,304.89

Finding the Fourth Proportional to 20,736.33, 28,616.15 and 11,304.89

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Solution

The fourth proportional to 20,736.33, 28,616.15 and 11,304.89 is: 15,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.33 : 28,616.15 = 11,304.89 : x
  2. Step 2: Convert to fraction form
    20,736.33/28,616.15 = 11,304.89/x
  3. Step 3: Cross multiply
    20,736.33x = 28,616.15 × 11,304.89
  4. Step 4: Simplify right side
    20,736.33x = 323,502,581.43
  5. Step 5: Solve for x
    x = 323,502,581.43/20,736.33
  6. Step 6: Final answer
    x = 15,600.76

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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.