Home / 20,719.60-31,044.84-14,552.56

Finding the Fourth Proportional to 20,719.60, 31,044.84 and 14,552.56

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Solution

The fourth proportional to 20,719.60, 31,044.84 and 14,552.56 is: 21,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719.60 : 31,044.84 = 14,552.56 : x
  2. Step 2: Convert to fraction form
    20,719.60/31,044.84 = 14,552.56/x
  3. Step 3: Cross multiply
    20,719.60x = 31,044.84 × 14,552.56
  4. Step 4: Simplify right side
    20,719.60x = 451,781,896.79
  5. Step 5: Solve for x
    x = 451,781,896.79/20,719.60
  6. Step 6: Final answer
    x = 21,804.57

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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.