Home / 20,040.13-27,655.49-11,087.95

Finding the Fourth Proportional to 20,040.13, 27,655.49 and 11,087.95

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Solution

The fourth proportional to 20,040.13, 27,655.49 and 11,087.95 is: 15,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.13 : 27,655.49 = 11,087.95 : x
  2. Step 2: Convert to fraction form
    20,040.13/27,655.49 = 11,087.95/x
  3. Step 3: Cross multiply
    20,040.13x = 27,655.49 × 11,087.95
  4. Step 4: Simplify right side
    20,040.13x = 306,642,690.35
  5. Step 5: Solve for x
    x = 306,642,690.35/20,040.13
  6. Step 6: Final answer
    x = 15,301.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.