Home / 26,489.30-39,657.20-20,628.14

Finding the Fourth Proportional to 26,489.30, 39,657.20 and 20,628.14

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Solution

The fourth proportional to 26,489.30, 39,657.20 and 20,628.14 is: 30,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,489.30 : 39,657.20 = 20,628.14 : x
  2. Step 2: Convert to fraction form
    26,489.30/39,657.20 = 20,628.14/x
  3. Step 3: Cross multiply
    26,489.30x = 39,657.20 × 20,628.14
  4. Step 4: Simplify right side
    26,489.30x = 818,053,972.18
  5. Step 5: Solve for x
    x = 818,053,972.18/26,489.30
  6. Step 6: Final answer
    x = 30,882.44

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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.