Home / 21,232.50-31,834.79-11,873.49

Finding the Fourth Proportional to 21,232.50, 31,834.79 and 11,873.49

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Solution

The fourth proportional to 21,232.50, 31,834.79 and 11,873.49 is: 17,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.50 : 31,834.79 = 11,873.49 : x
  2. Step 2: Convert to fraction form
    21,232.50/31,834.79 = 11,873.49/x
  3. Step 3: Cross multiply
    21,232.50x = 31,834.79 × 11,873.49
  4. Step 4: Simplify right side
    21,232.50x = 377,989,926.49
  5. Step 5: Solve for x
    x = 377,989,926.49/21,232.50
  6. Step 6: Final answer
    x = 17,802.43

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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.