Home / 21,283.57-31,945.04-10,761.01

Finding the Fourth Proportional to 21,283.57, 31,945.04 and 10,761.01

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Solution

The fourth proportional to 21,283.57, 31,945.04 and 10,761.01 is: 16,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.57 : 31,945.04 = 10,761.01 : x
  2. Step 2: Convert to fraction form
    21,283.57/31,945.04 = 10,761.01/x
  3. Step 3: Cross multiply
    21,283.57x = 31,945.04 × 10,761.01
  4. Step 4: Simplify right side
    21,283.57x = 343,760,841.93
  5. Step 5: Solve for x
    x = 343,760,841.93/21,283.57
  6. Step 6: Final answer
    x = 16,151.47

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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.