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Finding the Fourth Proportional to 27,118.56, 40,756.56 and 17,942.88

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Solution

The fourth proportional to 27,118.56, 40,756.56 and 17,942.88 is: 26,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.56 : 40,756.56 = 17,942.88 : x
  2. Step 2: Convert to fraction form
    27,118.56/40,756.56 = 17,942.88/x
  3. Step 3: Cross multiply
    27,118.56x = 40,756.56 × 17,942.88
  4. Step 4: Simplify right side
    27,118.56x = 731,290,065.29
  5. Step 5: Solve for x
    x = 731,290,065.29/27,118.56
  6. Step 6: Final answer
    x = 26,966.40

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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.