Home / 21,144.20-31,706.66-10,064.27

Finding the Fourth Proportional to 21,144.20, 31,706.66 and 10,064.27

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Solution

The fourth proportional to 21,144.20, 31,706.66 and 10,064.27 is: 15,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.20 : 31,706.66 = 10,064.27 : x
  2. Step 2: Convert to fraction form
    21,144.20/31,706.66 = 10,064.27/x
  3. Step 3: Cross multiply
    21,144.20x = 31,706.66 × 10,064.27
  4. Step 4: Simplify right side
    21,144.20x = 319,104,178.18
  5. Step 5: Solve for x
    x = 319,104,178.18/21,144.20
  6. Step 6: Final answer
    x = 15,091.81

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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.