Home / 26,015.40-38,995.11-11,231.28

Finding the Fourth Proportional to 26,015.40, 38,995.11 and 11,231.28

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Solution

The fourth proportional to 26,015.40, 38,995.11 and 11,231.28 is: 16,834.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,015.40 : 38,995.11 = 11,231.28 : x
  2. Step 2: Convert to fraction form
    26,015.40/38,995.11 = 11,231.28/x
  3. Step 3: Cross multiply
    26,015.40x = 38,995.11 × 11,231.28
  4. Step 4: Simplify right side
    26,015.40x = 437,964,999.04
  5. Step 5: Solve for x
    x = 437,964,999.04/26,015.40
  6. Step 6: Final answer
    x = 16,834.84

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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.