Home / 43,445.34-65,171.82-12,280.59

Finding the Fourth Proportional to 43,445.34, 65,171.82 and 12,280.59

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Solution

The fourth proportional to 43,445.34, 65,171.82 and 12,280.59 is: 18,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,445.34 : 65,171.82 = 12,280.59 : x
  2. Step 2: Convert to fraction form
    43,445.34/65,171.82 = 12,280.59/x
  3. Step 3: Cross multiply
    43,445.34x = 65,171.82 × 12,280.59
  4. Step 4: Simplify right side
    43,445.34x = 800,348,400.97
  5. Step 5: Solve for x
    x = 800,348,400.97/43,445.34
  6. Step 6: Final answer
    x = 18,421.96

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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.