Home / 20,170.10-30,233.55-9,074.90

Finding the Fourth Proportional to 20,170.10, 30,233.55 and 9,074.90

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Solution

The fourth proportional to 20,170.10, 30,233.55 and 9,074.90 is: 13,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.10 : 30,233.55 = 9,074.90 : x
  2. Step 2: Convert to fraction form
    20,170.10/30,233.55 = 9,074.90/x
  3. Step 3: Cross multiply
    20,170.10x = 30,233.55 × 9,074.90
  4. Step 4: Simplify right side
    20,170.10x = 274,366,442.90
  5. Step 5: Solve for x
    x = 274,366,442.90/20,170.10
  6. Step 6: Final answer
    x = 13,602.63

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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.