Home / 20,266.68-30,398.87-5,474.48

Finding the Fourth Proportional to 20,266.68, 30,398.87 and 5,474.48

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Solution

The fourth proportional to 20,266.68, 30,398.87 and 5,474.48 is: 8,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.68 : 30,398.87 = 5,474.48 : x
  2. Step 2: Convert to fraction form
    20,266.68/30,398.87 = 5,474.48/x
  3. Step 3: Cross multiply
    20,266.68x = 30,398.87 × 5,474.48
  4. Step 4: Simplify right side
    20,266.68x = 166,418,095.52
  5. Step 5: Solve for x
    x = 166,418,095.52/20,266.68
  6. Step 6: Final answer
    x = 8,211.41

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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.