Home / 22,860.20-34,241.70-18,972.20

Finding the Fourth Proportional to 22,860.20, 34,241.70 and 18,972.20

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Solution

The fourth proportional to 22,860.20, 34,241.70 and 18,972.20 is: 28,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.20 : 34,241.70 = 18,972.20 : x
  2. Step 2: Convert to fraction form
    22,860.20/34,241.70 = 18,972.20/x
  3. Step 3: Cross multiply
    22,860.20x = 34,241.70 × 18,972.20
  4. Step 4: Simplify right side
    22,860.20x = 649,640,380.74
  5. Step 5: Solve for x
    x = 649,640,380.74/22,860.20
  6. Step 6: Final answer
    x = 28,417.97

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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.