Home / 29,179.28-43,693.32-21,249.20

Finding the Fourth Proportional to 29,179.28, 43,693.32 and 21,249.20

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Solution

The fourth proportional to 29,179.28, 43,693.32 and 21,249.20 is: 31,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.28 : 43,693.32 = 21,249.20 : x
  2. Step 2: Convert to fraction form
    29,179.28/43,693.32 = 21,249.20/x
  3. Step 3: Cross multiply
    29,179.28x = 43,693.32 × 21,249.20
  4. Step 4: Simplify right side
    29,179.28x = 928,448,095.34
  5. Step 5: Solve for x
    x = 928,448,095.34/29,179.28
  6. Step 6: Final answer
    x = 31,818.75

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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.