Home / 26,442.20-39,663.29-7,974.20

Finding the Fourth Proportional to 26,442.20, 39,663.29 and 7,974.20

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Solution

The fourth proportional to 26,442.20, 39,663.29 and 7,974.20 is: 11,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,442.20 : 39,663.29 = 7,974.20 : x
  2. Step 2: Convert to fraction form
    26,442.20/39,663.29 = 7,974.20/x
  3. Step 3: Cross multiply
    26,442.20x = 39,663.29 × 7,974.20
  4. Step 4: Simplify right side
    26,442.20x = 316,282,768.93
  5. Step 5: Solve for x
    x = 316,282,768.93/26,442.20
  6. Step 6: Final answer
    x = 11,961.29

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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.