Home / 36,138.08-54,193.65-12,439.01

Finding the Fourth Proportional to 36,138.08, 54,193.65 and 12,439.01

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Solution

The fourth proportional to 36,138.08, 54,193.65 and 12,439.01 is: 18,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.08 : 54,193.65 = 12,439.01 : x
  2. Step 2: Convert to fraction form
    36,138.08/54,193.65 = 12,439.01/x
  3. Step 3: Cross multiply
    36,138.08x = 54,193.65 × 12,439.01
  4. Step 4: Simplify right side
    36,138.08x = 674,115,354.29
  5. Step 5: Solve for x
    x = 674,115,354.29/36,138.08
  6. Step 6: Final answer
    x = 18,653.88

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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.