Home / 21,062.97-31,573.79-10,517.19

Finding the Fourth Proportional to 21,062.97, 31,573.79 and 10,517.19

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Solution

The fourth proportional to 21,062.97, 31,573.79 and 10,517.19 is: 15,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.97 : 31,573.79 = 10,517.19 : x
  2. Step 2: Convert to fraction form
    21,062.97/31,573.79 = 10,517.19/x
  3. Step 3: Cross multiply
    21,062.97x = 31,573.79 × 10,517.19
  4. Step 4: Simplify right side
    21,062.97x = 332,067,579.71
  5. Step 5: Solve for x
    x = 332,067,579.71/21,062.97
  6. Step 6: Final answer
    x = 15,765.46

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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.