Home / 28,909.90-43,278.45-17,217.10

Finding the Fourth Proportional to 28,909.90, 43,278.45 and 17,217.10

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Solution

The fourth proportional to 28,909.90, 43,278.45 and 17,217.10 is: 25,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.90 : 43,278.45 = 17,217.10 : x
  2. Step 2: Convert to fraction form
    28,909.90/43,278.45 = 17,217.10/x
  3. Step 3: Cross multiply
    28,909.90x = 43,278.45 × 17,217.10
  4. Step 4: Simplify right side
    28,909.90x = 745,129,401.50
  5. Step 5: Solve for x
    x = 745,129,401.50/28,909.90
  6. Step 6: Final answer
    x = 25,774.20

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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.