Home / 20,251.82-30,376.65-7,105.52

Finding the Fourth Proportional to 20,251.82, 30,376.65 and 7,105.52

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Solution

The fourth proportional to 20,251.82, 30,376.65 and 7,105.52 is: 10,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.82 : 30,376.65 = 7,105.52 : x
  2. Step 2: Convert to fraction form
    20,251.82/30,376.65 = 7,105.52/x
  3. Step 3: Cross multiply
    20,251.82x = 30,376.65 × 7,105.52
  4. Step 4: Simplify right side
    20,251.82x = 215,841,894.11
  5. Step 5: Solve for x
    x = 215,841,894.11/20,251.82
  6. Step 6: Final answer
    x = 10,657.90

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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.