Home / 36,219.78-54,329.67-12,840.75

Finding the Fourth Proportional to 36,219.78, 54,329.67 and 12,840.75

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Solution

The fourth proportional to 36,219.78, 54,329.67 and 12,840.75 is: 19,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219.78 : 54,329.67 = 12,840.75 : x
  2. Step 2: Convert to fraction form
    36,219.78/54,329.67 = 12,840.75/x
  3. Step 3: Cross multiply
    36,219.78x = 54,329.67 × 12,840.75
  4. Step 4: Simplify right side
    36,219.78x = 697,633,710.05
  5. Step 5: Solve for x
    x = 697,633,710.05/36,219.78
  6. Step 6: Final answer
    x = 19,261.13

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Similar ratio
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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.