Home / 19,947.14-27,516.94-15,223.22

Finding the Fourth Proportional to 19,947.14, 27,516.94 and 15,223.22

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Solution

The fourth proportional to 19,947.14, 27,516.94 and 15,223.22 is: 21,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.14 : 27,516.94 = 15,223.22 : x
  2. Step 2: Convert to fraction form
    19,947.14/27,516.94 = 15,223.22/x
  3. Step 3: Cross multiply
    19,947.14x = 27,516.94 × 15,223.22
  4. Step 4: Simplify right side
    19,947.14x = 418,896,431.35
  5. Step 5: Solve for x
    x = 418,896,431.35/19,947.14
  6. Step 6: Final answer
    x = 21,000.33

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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.