Home / 20,040.93-27,655.29-11,087.91

Finding the Fourth Proportional to 20,040.93, 27,655.29 and 11,087.91

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Solution

The fourth proportional to 20,040.93, 27,655.29 and 11,087.91 is: 15,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.93 : 27,655.29 = 11,087.91 : x
  2. Step 2: Convert to fraction form
    20,040.93/27,655.29 = 11,087.91/x
  3. Step 3: Cross multiply
    20,040.93x = 27,655.29 × 11,087.91
  4. Step 4: Simplify right side
    20,040.93x = 306,639,366.54
  5. Step 5: Solve for x
    x = 306,639,366.54/20,040.93
  6. Step 6: Final answer
    x = 15,300.66

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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.