Home / 27,108.95-40,649.78-11,309.88

Finding the Fourth Proportional to 27,108.95, 40,649.78 and 11,309.88

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Solution

The fourth proportional to 27,108.95, 40,649.78 and 11,309.88 is: 16,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,108.95 : 40,649.78 = 11,309.88 : x
  2. Step 2: Convert to fraction form
    27,108.95/40,649.78 = 11,309.88/x
  3. Step 3: Cross multiply
    27,108.95x = 40,649.78 × 11,309.88
  4. Step 4: Simplify right side
    27,108.95x = 459,744,077.28
  5. Step 5: Solve for x
    x = 459,744,077.28/27,108.95
  6. Step 6: Final answer
    x = 16,959.13

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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.