Home / 18,974.22-28,439.13-14,279.16

Finding the Fourth Proportional to 18,974.22, 28,439.13 and 14,279.16

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Solution

The fourth proportional to 18,974.22, 28,439.13 and 14,279.16 is: 21,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.22 : 28,439.13 = 14,279.16 : x
  2. Step 2: Convert to fraction form
    18,974.22/28,439.13 = 14,279.16/x
  3. Step 3: Cross multiply
    18,974.22x = 28,439.13 × 14,279.16
  4. Step 4: Simplify right side
    18,974.22x = 406,086,887.53
  5. Step 5: Solve for x
    x = 406,086,887.53/18,974.22
  6. Step 6: Final answer
    x = 21,402.03

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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.