Home / 20,924.92-31,383.24-10,383.94

Finding the Fourth Proportional to 20,924.92, 31,383.24 and 10,383.94

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Solution

The fourth proportional to 20,924.92, 31,383.24 and 10,383.94 is: 15,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.92 : 31,383.24 = 10,383.94 : x
  2. Step 2: Convert to fraction form
    20,924.92/31,383.24 = 10,383.94/x
  3. Step 3: Cross multiply
    20,924.92x = 31,383.24 × 10,383.94
  4. Step 4: Simplify right side
    20,924.92x = 325,881,681.17
  5. Step 5: Solve for x
    x = 325,881,681.17/20,924.92
  6. Step 6: Final answer
    x = 15,573.86

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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.