Home / 28,704.76-43,017.04-13,909.75

Finding the Fourth Proportional to 28,704.76, 43,017.04 and 13,909.75

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Solution

The fourth proportional to 28,704.76, 43,017.04 and 13,909.75 is: 20,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.76 : 43,017.04 = 13,909.75 : x
  2. Step 2: Convert to fraction form
    28,704.76/43,017.04 = 13,909.75/x
  3. Step 3: Cross multiply
    28,704.76x = 43,017.04 × 13,909.75
  4. Step 4: Simplify right side
    28,704.76x = 598,356,272.14
  5. Step 5: Solve for x
    x = 598,356,272.14/28,704.76
  6. Step 6: Final answer
    x = 20,845.19

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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.