Home / 20,001.27-27,581.09-17,178.00

Finding the Fourth Proportional to 20,001.27, 27,581.09 and 17,178.00

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Solution

The fourth proportional to 20,001.27, 27,581.09 and 17,178.00 is: 23,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.27 : 27,581.09 = 17,178.00 : x
  2. Step 2: Convert to fraction form
    20,001.27/27,581.09 = 17,178.00/x
  3. Step 3: Cross multiply
    20,001.27x = 27,581.09 × 17,178.00
  4. Step 4: Simplify right side
    20,001.27x = 473,787,774.70
  5. Step 5: Solve for x
    x = 473,787,774.70/20,001.27
  6. Step 6: Final answer
    x = 23,687.88

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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.