Home / 21,540.65-32,312.50-5,745.59

Finding the Fourth Proportional to 21,540.65, 32,312.50 and 5,745.59

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Solution

The fourth proportional to 21,540.65, 32,312.50 and 5,745.59 is: 8,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.65 : 32,312.50 = 5,745.59 : x
  2. Step 2: Convert to fraction form
    21,540.65/32,312.50 = 5,745.59/x
  3. Step 3: Cross multiply
    21,540.65x = 32,312.50 × 5,745.59
  4. Step 4: Simplify right side
    21,540.65x = 185,654,376.88
  5. Step 5: Solve for x
    x = 185,654,376.88/21,540.65
  6. Step 6: Final answer
    x = 8,618.79

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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.