Home / 26,131.32-39,192.30-7,659

Finding the Fourth Proportional to 26,131.32, 39,192.30 and 7,659

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Solution

The fourth proportional to 26,131.32, 39,192.30 and 7,659 is: 11,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.32 : 39,192.30 = 7,659 : x
  2. Step 2: Convert to fraction form
    26,131.32/39,192.30 = 7,659/x
  3. Step 3: Cross multiply
    26,131.32x = 39,192.30 × 7,659
  4. Step 4: Simplify right side
    26,131.32x = 300,173,825.70
  5. Step 5: Solve for x
    x = 300,173,825.70/26,131.32
  6. Step 6: Final answer
    x = 11,487.13

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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.