Home / 43,508.75-65,156.20-21,250.35

Finding the Fourth Proportional to 43,508.75, 65,156.20 and 21,250.35

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Solution

The fourth proportional to 43,508.75, 65,156.20 and 21,250.35 is: 31,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508.75 : 65,156.20 = 21,250.35 : x
  2. Step 2: Convert to fraction form
    43,508.75/65,156.20 = 21,250.35/x
  3. Step 3: Cross multiply
    43,508.75x = 65,156.20 × 21,250.35
  4. Step 4: Simplify right side
    43,508.75x = 1,384,592,001.54
  5. Step 5: Solve for x
    x = 1,384,592,001.54/43,508.75
  6. Step 6: Final answer
    x = 31,823.30

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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.