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Finding the Third Proportional to 18,247.78 and 28,618.95

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Solution

The third proportional to 18,247.78 and 28,618.95 is: 44,884.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.78 : 28,618.95 = 28,618.95 : x
  2. Step 2: Convert to fraction form
    18,247.78/28,618.95 = 28,618.95/x
  3. Step 3: Cross multiply
    18,247.78x = 28,618.95 × 28,618.95
  4. Step 4: Simplify right side
    18,247.78x = 819,044,030.80
  5. Step 5: Solve for x
    x = 819,044,030.80/18,247.78
  6. Step 6: Final answer
    x = 44,884.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.