Home / 18,279.04-27,380.16-18,071.68

Finding the Fourth Proportional to 18,279.04, 27,380.16 and 18,071.68

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Solution

The fourth proportional to 18,279.04, 27,380.16 and 18,071.68 is: 27,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.04 : 27,380.16 = 18,071.68 : x
  2. Step 2: Convert to fraction form
    18,279.04/27,380.16 = 18,071.68/x
  3. Step 3: Cross multiply
    18,279.04x = 27,380.16 × 18,071.68
  4. Step 4: Simplify right side
    18,279.04x = 494,805,489.87
  5. Step 5: Solve for x
    x = 494,805,489.87/18,279.04
  6. Step 6: Final answer
    x = 27,069.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.