Home / 21,223.27-31,848.27-11,869.41

Finding the Fourth Proportional to 21,223.27, 31,848.27 and 11,869.41

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Solution

The fourth proportional to 21,223.27, 31,848.27 and 11,869.41 is: 17,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.27 : 31,848.27 = 11,869.41 : x
  2. Step 2: Convert to fraction form
    21,223.27/31,848.27 = 11,869.41/x
  3. Step 3: Cross multiply
    21,223.27x = 31,848.27 × 11,869.41
  4. Step 4: Simplify right side
    21,223.27x = 378,020,174.42
  5. Step 5: Solve for x
    x = 378,020,174.42/21,223.27
  6. Step 6: Final answer
    x = 17,811.59

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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.