Home / 22,272.30-30,711.15-15,202.62

Finding the Fourth Proportional to 22,272.30, 30,711.15 and 15,202.62

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Solution

The fourth proportional to 22,272.30, 30,711.15 and 15,202.62 is: 20,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.30 : 30,711.15 = 15,202.62 : x
  2. Step 2: Convert to fraction form
    22,272.30/30,711.15 = 15,202.62/x
  3. Step 3: Cross multiply
    22,272.30x = 30,711.15 × 15,202.62
  4. Step 4: Simplify right side
    22,272.30x = 466,889,943.21
  5. Step 5: Solve for x
    x = 466,889,943.21/22,272.30
  6. Step 6: Final answer
    x = 20,962.81

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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.