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Finding the Fourth Proportional to 18,117.80, 27,176.70 and 17,461.70

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Solution

The fourth proportional to 18,117.80, 27,176.70 and 17,461.70 is: 26,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.80 : 27,176.70 = 17,461.70 : x
  2. Step 2: Convert to fraction form
    18,117.80/27,176.70 = 17,461.70/x
  3. Step 3: Cross multiply
    18,117.80x = 27,176.70 × 17,461.70
  4. Step 4: Simplify right side
    18,117.80x = 474,551,382.39
  5. Step 5: Solve for x
    x = 474,551,382.39/18,117.80
  6. Step 6: Final answer
    x = 26,192.55

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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.