Home / 20,088.90-27,722.21-11,591.04

Finding the Fourth Proportional to 20,088.90, 27,722.21 and 11,591.04

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Solution

The fourth proportional to 20,088.90, 27,722.21 and 11,591.04 is: 15,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.90 : 27,722.21 = 11,591.04 : x
  2. Step 2: Convert to fraction form
    20,088.90/27,722.21 = 11,591.04/x
  3. Step 3: Cross multiply
    20,088.90x = 27,722.21 × 11,591.04
  4. Step 4: Simplify right side
    20,088.90x = 321,329,187.04
  5. Step 5: Solve for x
    x = 321,329,187.04/20,088.90
  6. Step 6: Final answer
    x = 15,995.36

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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.