Home / 20,363.30-30,530.55-9,275.30

Finding the Fourth Proportional to 20,363.30, 30,530.55 and 9,275.30

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Solution

The fourth proportional to 20,363.30, 30,530.55 and 9,275.30 is: 13,906.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.30 : 30,530.55 = 9,275.30 : x
  2. Step 2: Convert to fraction form
    20,363.30/30,530.55 = 9,275.30/x
  3. Step 3: Cross multiply
    20,363.30x = 30,530.55 × 9,275.30
  4. Step 4: Simplify right side
    20,363.30x = 283,180,010.42
  5. Step 5: Solve for x
    x = 283,180,010.42/20,363.30
  6. Step 6: Final answer
    x = 13,906.39

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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.