Home / 21,679.16-32,523.33-7,638.62

Finding the Fourth Proportional to 21,679.16, 32,523.33 and 7,638.62

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Solution

The fourth proportional to 21,679.16, 32,523.33 and 7,638.62 is: 11,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.16 : 32,523.33 = 7,638.62 : x
  2. Step 2: Convert to fraction form
    21,679.16/32,523.33 = 7,638.62/x
  3. Step 3: Cross multiply
    21,679.16x = 32,523.33 × 7,638.62
  4. Step 4: Simplify right side
    21,679.16x = 248,433,359.00
  5. Step 5: Solve for x
    x = 248,433,359.00/21,679.16
  6. Step 6: Final answer
    x = 11,459.55

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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.