Home / 18,545.42-27,639.71-18,250.18

Finding the Fourth Proportional to 18,545.42, 27,639.71 and 18,250.18

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Solution

The fourth proportional to 18,545.42, 27,639.71 and 18,250.18 is: 27,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.42 : 27,639.71 = 18,250.18 : x
  2. Step 2: Convert to fraction form
    18,545.42/27,639.71 = 18,250.18/x
  3. Step 3: Cross multiply
    18,545.42x = 27,639.71 × 18,250.18
  4. Step 4: Simplify right side
    18,545.42x = 504,429,591.40
  5. Step 5: Solve for x
    x = 504,429,591.40/18,545.42
  6. Step 6: Final answer
    x = 27,199.69

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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.