Home / 18,114.35-27,039.57-16,778.76

Finding the Fourth Proportional to 18,114.35, 27,039.57 and 16,778.76

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Solution

The fourth proportional to 18,114.35, 27,039.57 and 16,778.76 is: 25,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.35 : 27,039.57 = 16,778.76 : x
  2. Step 2: Convert to fraction form
    18,114.35/27,039.57 = 16,778.76/x
  3. Step 3: Cross multiply
    18,114.35x = 27,039.57 × 16,778.76
  4. Step 4: Simplify right side
    18,114.35x = 453,690,455.53
  5. Step 5: Solve for x
    x = 453,690,455.53/18,114.35
  6. Step 6: Final answer
    x = 25,045.91

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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.