Home / 21,182.80-31,797.14-15,932.78

Finding the Fourth Proportional to 21,182.80, 31,797.14 and 15,932.78

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Solution

The fourth proportional to 21,182.80, 31,797.14 and 15,932.78 is: 23,916.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.80 : 31,797.14 = 15,932.78 : x
  2. Step 2: Convert to fraction form
    21,182.80/31,797.14 = 15,932.78/x
  3. Step 3: Cross multiply
    21,182.80x = 31,797.14 × 15,932.78
  4. Step 4: Simplify right side
    21,182.80x = 506,616,836.25
  5. Step 5: Solve for x
    x = 506,616,836.25/21,182.80
  6. Step 6: Final answer
    x = 23,916.42

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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.