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Finding the Fourth Proportional to 18,642.17, 27,963.26 and 15,348.34

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Solution

The fourth proportional to 18,642.17, 27,963.26 and 15,348.34 is: 23,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.17 : 27,963.26 = 15,348.34 : x
  2. Step 2: Convert to fraction form
    18,642.17/27,963.26 = 15,348.34/x
  3. Step 3: Cross multiply
    18,642.17x = 27,963.26 × 15,348.34
  4. Step 4: Simplify right side
    18,642.17x = 429,189,621.99
  5. Step 5: Solve for x
    x = 429,189,621.99/18,642.17
  6. Step 6: Final answer
    x = 23,022.51

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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.