Home / 43,421.88-65,132.64-12,257.04

Finding the Fourth Proportional to 43,421.88, 65,132.64 and 12,257.04

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Solution

The fourth proportional to 43,421.88, 65,132.64 and 12,257.04 is: 18,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.88 : 65,132.64 = 12,257.04 : x
  2. Step 2: Convert to fraction form
    43,421.88/65,132.64 = 12,257.04/x
  3. Step 3: Cross multiply
    43,421.88x = 65,132.64 × 12,257.04
  4. Step 4: Simplify right side
    43,421.88x = 798,333,373.79
  5. Step 5: Solve for x
    x = 798,333,373.79/43,421.88
  6. Step 6: Final answer
    x = 18,385.51

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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.