Home / 22,212.27-33,156.35-19,409.70

Finding the Fourth Proportional to 22,212.27, 33,156.35 and 19,409.70

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Solution

The fourth proportional to 22,212.27, 33,156.35 and 19,409.70 is: 28,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.27 : 33,156.35 = 19,409.70 : x
  2. Step 2: Convert to fraction form
    22,212.27/33,156.35 = 19,409.70/x
  3. Step 3: Cross multiply
    22,212.27x = 33,156.35 × 19,409.70
  4. Step 4: Simplify right side
    22,212.27x = 643,554,709.55
  5. Step 5: Solve for x
    x = 643,554,709.55/22,212.27
  6. Step 6: Final answer
    x = 28,972.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.