Home / 21,249.92-31,845.71-13,444.76

Finding the Fourth Proportional to 21,249.92, 31,845.71 and 13,444.76

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Solution

The fourth proportional to 21,249.92, 31,845.71 and 13,444.76 is: 20,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.92 : 31,845.71 = 13,444.76 : x
  2. Step 2: Convert to fraction form
    21,249.92/31,845.71 = 13,444.76/x
  3. Step 3: Cross multiply
    21,249.92x = 31,845.71 × 13,444.76
  4. Step 4: Simplify right side
    21,249.92x = 428,157,802.36
  5. Step 5: Solve for x
    x = 428,157,802.36/21,249.92
  6. Step 6: Final answer
    x = 20,148.68

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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.