Home / 21,283.83-31,945.41-10,761.24

Finding the Fourth Proportional to 21,283.83, 31,945.41 and 10,761.24

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Solution

The fourth proportional to 21,283.83, 31,945.41 and 10,761.24 is: 16,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.83 : 31,945.41 = 10,761.24 : x
  2. Step 2: Convert to fraction form
    21,283.83/31,945.41 = 10,761.24/x
  3. Step 3: Cross multiply
    21,283.83x = 31,945.41 × 10,761.24
  4. Step 4: Simplify right side
    21,283.83x = 343,772,223.91
  5. Step 5: Solve for x
    x = 343,772,223.91/21,283.83
  6. Step 6: Final answer
    x = 16,151.80

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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.