Home / 43,613.48-65,439.66-15,905

Finding the Fourth Proportional to 43,613.48, 65,439.66 and 15,905

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Solution

The fourth proportional to 43,613.48, 65,439.66 and 15,905 is: 23,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.48 : 65,439.66 = 15,905 : x
  2. Step 2: Convert to fraction form
    43,613.48/65,439.66 = 15,905/x
  3. Step 3: Cross multiply
    43,613.48x = 65,439.66 × 15,905
  4. Step 4: Simplify right side
    43,613.48x = 1,040,817,792.30
  5. Step 5: Solve for x
    x = 1,040,817,792.30/43,613.48
  6. Step 6: Final answer
    x = 23,864.59

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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.