Home / 27,039.30-40,517.15-21,102.10

Finding the Fourth Proportional to 27,039.30, 40,517.15 and 21,102.10

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Solution

The fourth proportional to 27,039.30, 40,517.15 and 21,102.10 is: 31,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.30 : 40,517.15 = 21,102.10 : x
  2. Step 2: Convert to fraction form
    27,039.30/40,517.15 = 21,102.10/x
  3. Step 3: Cross multiply
    27,039.30x = 40,517.15 × 21,102.10
  4. Step 4: Simplify right side
    27,039.30x = 854,996,744.21
  5. Step 5: Solve for x
    x = 854,996,744.21/27,039.30
  6. Step 6: Final answer
    x = 31,620.53

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1.5x scale

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.