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Finding the Fourth Proportional to 18,179.15, 27,106.29 and 18,143.64

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Solution

The fourth proportional to 18,179.15, 27,106.29 and 18,143.64 is: 27,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.15 : 27,106.29 = 18,143.64 : x
  2. Step 2: Convert to fraction form
    18,179.15/27,106.29 = 18,143.64/x
  3. Step 3: Cross multiply
    18,179.15x = 27,106.29 × 18,143.64
  4. Step 4: Simplify right side
    18,179.15x = 491,806,767.50
  5. Step 5: Solve for x
    x = 491,806,767.50/18,179.15
  6. Step 6: Final answer
    x = 27,053.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.