Home / 31,836.05-47,691.03-21,816.17

Finding the Fourth Proportional to 31,836.05, 47,691.03 and 21,816.17

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Solution

The fourth proportional to 31,836.05, 47,691.03 and 21,816.17 is: 32,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.05 : 47,691.03 = 21,816.17 : x
  2. Step 2: Convert to fraction form
    31,836.05/47,691.03 = 21,816.17/x
  3. Step 3: Cross multiply
    31,836.05x = 47,691.03 × 21,816.17
  4. Step 4: Simplify right side
    31,836.05x = 1,040,435,718.63
  5. Step 5: Solve for x
    x = 1,040,435,718.63/31,836.05
  6. Step 6: Final answer
    x = 32,681.06

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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.