Home / 15,028.62-20,720.25-10,304.70

Finding the Fourth Proportional to 15,028.62, 20,720.25 and 10,304.70

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Solution

The fourth proportional to 15,028.62, 20,720.25 and 10,304.70 is: 14,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.62 : 20,720.25 = 10,304.70 : x
  2. Step 2: Convert to fraction form
    15,028.62/20,720.25 = 10,304.70/x
  3. Step 3: Cross multiply
    15,028.62x = 20,720.25 × 10,304.70
  4. Step 4: Simplify right side
    15,028.62x = 213,515,960.18
  5. Step 5: Solve for x
    x = 213,515,960.18/15,028.62
  6. Step 6: Final answer
    x = 14,207.29

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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.