Home / 26,761.85-39,980-17,324.99

Finding the Fourth Proportional to 26,761.85, 39,980 and 17,324.99

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Solution

The fourth proportional to 26,761.85, 39,980 and 17,324.99 is: 25,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,761.85 : 39,980 = 17,324.99 : x
  2. Step 2: Convert to fraction form
    26,761.85/39,980 = 17,324.99/x
  3. Step 3: Cross multiply
    26,761.85x = 39,980 × 17,324.99
  4. Step 4: Simplify right side
    26,761.85x = 692,653,100.20
  5. Step 5: Solve for x
    x = 692,653,100.20/26,761.85
  6. Step 6: Final answer
    x = 25,882.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.