Home / 26,972.58-40,388.00-21,679.50

Finding the Fourth Proportional to 26,972.58, 40,388.00 and 21,679.50

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Solution

The fourth proportional to 26,972.58, 40,388.00 and 21,679.50 is: 32,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,972.58 : 40,388.00 = 21,679.50 : x
  2. Step 2: Convert to fraction form
    26,972.58/40,388.00 = 21,679.50/x
  3. Step 3: Cross multiply
    26,972.58x = 40,388.00 × 21,679.50
  4. Step 4: Simplify right side
    26,972.58x = 875,591,811.00
  5. Step 5: Solve for x
    x = 875,591,811.00/26,972.58
  6. Step 6: Final answer
    x = 32,462.29

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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.