Home / 20,380.32-30,545.97-17,698.32

Finding the Fourth Proportional to 20,380.32, 30,545.97 and 17,698.32

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Solution

The fourth proportional to 20,380.32, 30,545.97 and 17,698.32 is: 26,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.32 : 30,545.97 = 17,698.32 : x
  2. Step 2: Convert to fraction form
    20,380.32/30,545.97 = 17,698.32/x
  3. Step 3: Cross multiply
    20,380.32x = 30,545.97 × 17,698.32
  4. Step 4: Simplify right side
    20,380.32x = 540,612,351.77
  5. Step 5: Solve for x
    x = 540,612,351.77/20,380.32
  6. Step 6: Final answer
    x = 26,526.20

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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.