Home / 43,421.79-65,132.68-12,257.04

Finding the Fourth Proportional to 43,421.79, 65,132.68 and 12,257.04

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Solution

The fourth proportional to 43,421.79, 65,132.68 and 12,257.04 is: 18,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.79 : 65,132.68 = 12,257.04 : x
  2. Step 2: Convert to fraction form
    43,421.79/65,132.68 = 12,257.04/x
  3. Step 3: Cross multiply
    43,421.79x = 65,132.68 × 12,257.04
  4. Step 4: Simplify right side
    43,421.79x = 798,333,477.12
  5. Step 5: Solve for x
    x = 798,333,477.12/43,421.79
  6. Step 6: Final answer
    x = 18,385.55

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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.