Home / 19,703.11-27,200.33-15,216.79

Finding the Fourth Proportional to 19,703.11, 27,200.33 and 15,216.79

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Solution

The fourth proportional to 19,703.11, 27,200.33 and 15,216.79 is: 21,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.11 : 27,200.33 = 15,216.79 : x
  2. Step 2: Convert to fraction form
    19,703.11/27,200.33 = 15,216.79/x
  3. Step 3: Cross multiply
    19,703.11x = 27,200.33 × 15,216.79
  4. Step 4: Simplify right side
    19,703.11x = 413,901,709.54
  5. Step 5: Solve for x
    x = 413,901,709.54/19,703.11
  6. Step 6: Final answer
    x = 21,006.92

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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.