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Finding the Fourth Proportional to 27,124.80, 40,687.20 and 16,756.80

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Solution

The fourth proportional to 27,124.80, 40,687.20 and 16,756.80 is: 25,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,124.80 : 40,687.20 = 16,756.80 : x
  2. Step 2: Convert to fraction form
    27,124.80/40,687.20 = 16,756.80/x
  3. Step 3: Cross multiply
    27,124.80x = 40,687.20 × 16,756.80
  4. Step 4: Simplify right side
    27,124.80x = 681,787,272.96
  5. Step 5: Solve for x
    x = 681,787,272.96/27,124.80
  6. Step 6: Final answer
    x = 25,135.20

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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.