Home / 20,330.38-30,493.14-9,225.28

Finding the Fourth Proportional to 20,330.38, 30,493.14 and 9,225.28

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Solution

The fourth proportional to 20,330.38, 30,493.14 and 9,225.28 is: 13,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.38 : 30,493.14 = 9,225.28 : x
  2. Step 2: Convert to fraction form
    20,330.38/30,493.14 = 9,225.28/x
  3. Step 3: Cross multiply
    20,330.38x = 30,493.14 × 9,225.28
  4. Step 4: Simplify right side
    20,330.38x = 281,307,754.58
  5. Step 5: Solve for x
    x = 281,307,754.58/20,330.38
  6. Step 6: Final answer
    x = 13,836.82

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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.