Home / 21,043.45-31,561.73-8,562.97

Finding the Fourth Proportional to 21,043.45, 31,561.73 and 8,562.97

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Solution

The fourth proportional to 21,043.45, 31,561.73 and 8,562.97 is: 12,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.45 : 31,561.73 = 8,562.97 : x
  2. Step 2: Convert to fraction form
    21,043.45/31,561.73 = 8,562.97/x
  3. Step 3: Cross multiply
    21,043.45x = 31,561.73 × 8,562.97
  4. Step 4: Simplify right side
    21,043.45x = 270,262,046.52
  5. Step 5: Solve for x
    x = 270,262,046.52/21,043.45
  6. Step 6: Final answer
    x = 12,843.05

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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.