Home / 19,703.74-27,201.19-15,217.42

Finding the Fourth Proportional to 19,703.74, 27,201.19 and 15,217.42

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Solution

The fourth proportional to 19,703.74, 27,201.19 and 15,217.42 is: 21,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.74 : 27,201.19 = 15,217.42 : x
  2. Step 2: Convert to fraction form
    19,703.74/27,201.19 = 15,217.42/x
  3. Step 3: Cross multiply
    19,703.74x = 27,201.19 × 15,217.42
  4. Step 4: Simplify right side
    19,703.74x = 413,931,932.73
  5. Step 5: Solve for x
    x = 413,931,932.73/19,703.74
  6. Step 6: Final answer
    x = 21,007.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.