Home / 21,640.61-32,475.11-7,600.28

Finding the Fourth Proportional to 21,640.61, 32,475.11 and 7,600.28

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Solution

The fourth proportional to 21,640.61, 32,475.11 and 7,600.28 is: 11,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.61 : 32,475.11 = 7,600.28 : x
  2. Step 2: Convert to fraction form
    21,640.61/32,475.11 = 7,600.28/x
  3. Step 3: Cross multiply
    21,640.61x = 32,475.11 × 7,600.28
  4. Step 4: Simplify right side
    21,640.61x = 246,819,929.03
  5. Step 5: Solve for x
    x = 246,819,929.03/21,640.61
  6. Step 6: Final answer
    x = 11,405.41

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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.