Home / 21,569.96-32,354.03-6,778.55

Finding the Fourth Proportional to 21,569.96, 32,354.03 and 6,778.55

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Solution

The fourth proportional to 21,569.96, 32,354.03 and 6,778.55 is: 10,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.96 : 32,354.03 = 6,778.55 : x
  2. Step 2: Convert to fraction form
    21,569.96/32,354.03 = 6,778.55/x
  3. Step 3: Cross multiply
    21,569.96x = 32,354.03 × 6,778.55
  4. Step 4: Simplify right side
    21,569.96x = 219,313,507.89
  5. Step 5: Solve for x
    x = 219,313,507.89/21,569.96
  6. Step 6: Final answer
    x = 10,167.54

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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.