Home / 28,821.86-43,241.14-11,951.74

Finding the Fourth Proportional to 28,821.86, 43,241.14 and 11,951.74

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Solution

The fourth proportional to 28,821.86, 43,241.14 and 11,951.74 is: 17,931.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.86 : 43,241.14 = 11,951.74 : x
  2. Step 2: Convert to fraction form
    28,821.86/43,241.14 = 11,951.74/x
  3. Step 3: Cross multiply
    28,821.86x = 43,241.14 × 11,951.74
  4. Step 4: Simplify right side
    28,821.86x = 516,806,862.58
  5. Step 5: Solve for x
    x = 516,806,862.58/28,821.86
  6. Step 6: Final answer
    x = 17,931.07

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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.