Home / 36,115.09-54,158.59-12,418.14

Finding the Fourth Proportional to 36,115.09, 54,158.59 and 12,418.14

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Solution

The fourth proportional to 36,115.09, 54,158.59 and 12,418.14 is: 18,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,115.09 : 54,158.59 = 12,418.14 : x
  2. Step 2: Convert to fraction form
    36,115.09/54,158.59 = 12,418.14/x
  3. Step 3: Cross multiply
    36,115.09x = 54,158.59 × 12,418.14
  4. Step 4: Simplify right side
    36,115.09x = 672,548,952.82
  5. Step 5: Solve for x
    x = 672,548,952.82/36,115.09
  6. Step 6: Final answer
    x = 18,622.38

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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.