Home / 20,088.48-27,723.20-11,137.04

Finding the Fourth Proportional to 20,088.48, 27,723.20 and 11,137.04

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Solution

The fourth proportional to 20,088.48, 27,723.20 and 11,137.04 is: 15,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.48 : 27,723.20 = 11,137.04 : x
  2. Step 2: Convert to fraction form
    20,088.48/27,723.20 = 11,137.04/x
  3. Step 3: Cross multiply
    20,088.48x = 27,723.20 × 11,137.04
  4. Step 4: Simplify right side
    20,088.48x = 308,754,387.33
  5. Step 5: Solve for x
    x = 308,754,387.33/20,088.48
  6. Step 6: Final answer
    x = 15,369.72

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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.