Home / 20,040.19-27,655.22-11,087.62

Finding the Fourth Proportional to 20,040.19, 27,655.22 and 11,087.62

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Solution

The fourth proportional to 20,040.19, 27,655.22 and 11,087.62 is: 15,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.19 : 27,655.22 = 11,087.62 : x
  2. Step 2: Convert to fraction form
    20,040.19/27,655.22 = 11,087.62/x
  3. Step 3: Cross multiply
    20,040.19x = 27,655.22 × 11,087.62
  4. Step 4: Simplify right side
    20,040.19x = 306,630,528.96
  5. Step 5: Solve for x
    x = 306,630,528.96/20,040.19
  6. Step 6: Final answer
    x = 15,300.78

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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.