Home / 36,129.68-54,181.04-12,430.59

Finding the Fourth Proportional to 36,129.68, 54,181.04 and 12,430.59

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Solution

The fourth proportional to 36,129.68, 54,181.04 and 12,430.59 is: 18,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.68 : 54,181.04 = 12,430.59 : x
  2. Step 2: Convert to fraction form
    36,129.68/54,181.04 = 12,430.59/x
  3. Step 3: Cross multiply
    36,129.68x = 54,181.04 × 12,430.59
  4. Step 4: Simplify right side
    36,129.68x = 673,502,294.01
  5. Step 5: Solve for x
    x = 673,502,294.01/36,129.68
  6. Step 6: Final answer
    x = 18,641.25

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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.