Home / 27,621.40-41,432.10-20,104.60

Finding the Fourth Proportional to 27,621.40, 41,432.10 and 20,104.60

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Solution

The fourth proportional to 27,621.40, 41,432.10 and 20,104.60 is: 30,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.40 : 41,432.10 = 20,104.60 : x
  2. Step 2: Convert to fraction form
    27,621.40/41,432.10 = 20,104.60/x
  3. Step 3: Cross multiply
    27,621.40x = 41,432.10 × 20,104.60
  4. Step 4: Simplify right side
    27,621.40x = 832,975,797.66
  5. Step 5: Solve for x
    x = 832,975,797.66/27,621.40
  6. Step 6: Final answer
    x = 30,156.90

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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.