Home / 43,829.13-65,747.34-18,869.79

Finding the Fourth Proportional to 43,829.13, 65,747.34 and 18,869.79

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Solution

The fourth proportional to 43,829.13, 65,747.34 and 18,869.79 is: 28,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,829.13 : 65,747.34 = 18,869.79 : x
  2. Step 2: Convert to fraction form
    43,829.13/65,747.34 = 18,869.79/x
  3. Step 3: Cross multiply
    43,829.13x = 65,747.34 × 18,869.79
  4. Step 4: Simplify right side
    43,829.13x = 1,240,638,498.86
  5. Step 5: Solve for x
    x = 1,240,638,498.86/43,829.13
  6. Step 6: Final answer
    x = 28,306.25

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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.