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Finding the Fourth Proportional to 18,214.17, 27,291.88 and 14,335.89

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Solution

The fourth proportional to 18,214.17, 27,291.88 and 14,335.89 is: 21,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214.17 : 27,291.88 = 14,335.89 : x
  2. Step 2: Convert to fraction form
    18,214.17/27,291.88 = 14,335.89/x
  3. Step 3: Cross multiply
    18,214.17x = 27,291.88 × 14,335.89
  4. Step 4: Simplify right side
    18,214.17x = 391,253,389.57
  5. Step 5: Solve for x
    x = 391,253,389.57/18,214.17
  6. Step 6: Final answer
    x = 21,480.71

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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.