Home / 36,218.78-54,328.17-12,839.75

Finding the Fourth Proportional to 36,218.78, 54,328.17 and 12,839.75

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Solution

The fourth proportional to 36,218.78, 54,328.17 and 12,839.75 is: 19,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.78 : 54,328.17 = 12,839.75 : x
  2. Step 2: Convert to fraction form
    36,218.78/54,328.17 = 12,839.75/x
  3. Step 3: Cross multiply
    36,218.78x = 54,328.17 × 12,839.75
  4. Step 4: Simplify right side
    36,218.78x = 697,560,120.76
  5. Step 5: Solve for x
    x = 697,560,120.76/36,218.78
  6. Step 6: Final answer
    x = 19,259.63

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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.