Home / 29,219.96-40,323.44-15,791.22

Finding the Fourth Proportional to 29,219.96, 40,323.44 and 15,791.22

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Solution

The fourth proportional to 29,219.96, 40,323.44 and 15,791.22 is: 21,791.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,219.96 : 40,323.44 = 15,791.22 : x
  2. Step 2: Convert to fraction form
    29,219.96/40,323.44 = 15,791.22/x
  3. Step 3: Cross multiply
    29,219.96x = 40,323.44 × 15,791.22
  4. Step 4: Simplify right side
    29,219.96x = 636,756,351.67
  5. Step 5: Solve for x
    x = 636,756,351.67/29,219.96
  6. Step 6: Final answer
    x = 21,791.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.