Home / 36,918.91-55,381.28-18,188.73

Finding the Fourth Proportional to 36,918.91, 55,381.28 and 18,188.73

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Solution

The fourth proportional to 36,918.91, 55,381.28 and 18,188.73 is: 27,284.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.91 : 55,381.28 = 18,188.73 : x
  2. Step 2: Convert to fraction form
    36,918.91/55,381.28 = 18,188.73/x
  3. Step 3: Cross multiply
    36,918.91x = 55,381.28 × 18,188.73
  4. Step 4: Simplify right side
    36,918.91x = 1,007,315,263.80
  5. Step 5: Solve for x
    x = 1,007,315,263.80/36,918.91
  6. Step 6: Final answer
    x = 27,284.53

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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.