Home / 20,864.62-28,792.87-11,304.24

Finding the Fourth Proportional to 20,864.62, 28,792.87 and 11,304.24

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Solution

The fourth proportional to 20,864.62, 28,792.87 and 11,304.24 is: 15,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.62 : 28,792.87 = 11,304.24 : x
  2. Step 2: Convert to fraction form
    20,864.62/28,792.87 = 11,304.24/x
  3. Step 3: Cross multiply
    20,864.62x = 28,792.87 × 11,304.24
  4. Step 4: Simplify right side
    20,864.62x = 325,481,538.49
  5. Step 5: Solve for x
    x = 325,481,538.49/20,864.62
  6. Step 6: Final answer
    x = 15,599.69

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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.