Home / 18,515.10-27,772.65-15,599.10

Finding the Fourth Proportional to 18,515.10, 27,772.65 and 15,599.10

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Solution

The fourth proportional to 18,515.10, 27,772.65 and 15,599.10 is: 23,398.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.10 : 27,772.65 = 15,599.10 : x
  2. Step 2: Convert to fraction form
    18,515.10/27,772.65 = 15,599.10/x
  3. Step 3: Cross multiply
    18,515.10x = 27,772.65 × 15,599.10
  4. Step 4: Simplify right side
    18,515.10x = 433,228,344.62
  5. Step 5: Solve for x
    x = 433,228,344.62/18,515.10
  6. Step 6: Final answer
    x = 23,398.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.