Home / 20,233.30-30,346.28-5,438.76

Finding the Fourth Proportional to 20,233.30, 30,346.28 and 5,438.76

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Solution

The fourth proportional to 20,233.30, 30,346.28 and 5,438.76 is: 8,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.30 : 30,346.28 = 5,438.76 : x
  2. Step 2: Convert to fraction form
    20,233.30/30,346.28 = 5,438.76/x
  3. Step 3: Cross multiply
    20,233.30x = 30,346.28 × 5,438.76
  4. Step 4: Simplify right side
    20,233.30x = 165,046,106.62
  5. Step 5: Solve for x
    x = 165,046,106.62/20,233.30
  6. Step 6: Final answer
    x = 8,157.15

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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.