Home / 20,282.40-30,387.15-17,366.40

Finding the Fourth Proportional to 20,282.40, 30,387.15 and 17,366.40

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Solution

The fourth proportional to 20,282.40, 30,387.15 and 17,366.40 is: 26,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.40 : 30,387.15 = 17,366.40 : x
  2. Step 2: Convert to fraction form
    20,282.40/30,387.15 = 17,366.40/x
  3. Step 3: Cross multiply
    20,282.40x = 30,387.15 × 17,366.40
  4. Step 4: Simplify right side
    20,282.40x = 527,715,401.76
  5. Step 5: Solve for x
    x = 527,715,401.76/20,282.40
  6. Step 6: Final answer
    x = 26,018.39

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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.