Home / 21,283.73-31,945.28-10,761.17

Finding the Fourth Proportional to 21,283.73, 31,945.28 and 10,761.17

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Solution

The fourth proportional to 21,283.73, 31,945.28 and 10,761.17 is: 16,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.73 : 31,945.28 = 10,761.17 : x
  2. Step 2: Convert to fraction form
    21,283.73/31,945.28 = 10,761.17/x
  3. Step 3: Cross multiply
    21,283.73x = 31,945.28 × 10,761.17
  4. Step 4: Simplify right side
    21,283.73x = 343,768,588.78
  5. Step 5: Solve for x
    x = 343,768,588.78/21,283.73
  6. Step 6: Final answer
    x = 16,151.71

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1.5x scale

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.