Home / 36,412.57-54,621.33-12,387.09

Finding the Fourth Proportional to 36,412.57, 54,621.33 and 12,387.09

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Solution

The fourth proportional to 36,412.57, 54,621.33 and 12,387.09 is: 18,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,412.57 : 54,621.33 = 12,387.09 : x
  2. Step 2: Convert to fraction form
    36,412.57/54,621.33 = 12,387.09/x
  3. Step 3: Cross multiply
    36,412.57x = 54,621.33 × 12,387.09
  4. Step 4: Simplify right side
    36,412.57x = 676,599,489.01
  5. Step 5: Solve for x
    x = 676,599,489.01/36,412.57
  6. Step 6: Final answer
    x = 18,581.48

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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.