Home / 20,834.82-31,137.56-15,224.17

Finding the Fourth Proportional to 20,834.82, 31,137.56 and 15,224.17

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Solution

The fourth proportional to 20,834.82, 31,137.56 and 15,224.17 is: 22,752.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.82 : 31,137.56 = 15,224.17 : x
  2. Step 2: Convert to fraction form
    20,834.82/31,137.56 = 15,224.17/x
  3. Step 3: Cross multiply
    20,834.82x = 31,137.56 × 15,224.17
  4. Step 4: Simplify right side
    20,834.82x = 474,043,489.74
  5. Step 5: Solve for x
    x = 474,043,489.74/20,834.82
  6. Step 6: Final answer
    x = 22,752.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.