Home / 21,324.37-31,923.37-15,802.49

Finding the Fourth Proportional to 21,324.37, 31,923.37 and 15,802.49

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Solution

The fourth proportional to 21,324.37, 31,923.37 and 15,802.49 is: 23,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.37 : 31,923.37 = 15,802.49 : x
  2. Step 2: Convert to fraction form
    21,324.37/31,923.37 = 15,802.49/x
  3. Step 3: Cross multiply
    21,324.37x = 31,923.37 × 15,802.49
  4. Step 4: Simplify right side
    21,324.37x = 504,468,833.87
  5. Step 5: Solve for x
    x = 504,468,833.87/21,324.37
  6. Step 6: Final answer
    x = 23,656.92

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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.