Home / 20,167.12-30,250.88-7,019.92

Finding the Fourth Proportional to 20,167.12, 30,250.88 and 7,019.92

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Solution

The fourth proportional to 20,167.12, 30,250.88 and 7,019.92 is: 10,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.12 : 30,250.88 = 7,019.92 : x
  2. Step 2: Convert to fraction form
    20,167.12/30,250.88 = 7,019.92/x
  3. Step 3: Cross multiply
    20,167.12x = 30,250.88 × 7,019.92
  4. Step 4: Simplify right side
    20,167.12x = 212,358,757.53
  5. Step 5: Solve for x
    x = 212,358,757.53/20,167.12
  6. Step 6: Final answer
    x = 10,529.95

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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.