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Finding the Fourth Proportional to 18,468.67, 27,827.67 and 15,253.78

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Solution

The fourth proportional to 18,468.67, 27,827.67 and 15,253.78 is: 22,983.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.67 : 27,827.67 = 15,253.78 : x
  2. Step 2: Convert to fraction form
    18,468.67/27,827.67 = 15,253.78/x
  3. Step 3: Cross multiply
    18,468.67x = 27,827.67 × 15,253.78
  4. Step 4: Simplify right side
    18,468.67x = 424,477,156.09
  5. Step 5: Solve for x
    x = 424,477,156.09/18,468.67
  6. Step 6: Final answer
    x = 22,983.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.