Home / 26,442.80-39,690.12-20,144.24

Finding the Fourth Proportional to 26,442.80, 39,690.12 and 20,144.24

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Solution

The fourth proportional to 26,442.80, 39,690.12 and 20,144.24 is: 30,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,442.80 : 39,690.12 = 20,144.24 : x
  2. Step 2: Convert to fraction form
    26,442.80/39,690.12 = 20,144.24/x
  3. Step 3: Cross multiply
    26,442.80x = 39,690.12 × 20,144.24
  4. Step 4: Simplify right side
    26,442.80x = 799,527,302.91
  5. Step 5: Solve for x
    x = 799,527,302.91/26,442.80
  6. Step 6: Final answer
    x = 30,236.11

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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.