Home / 20,193.39-27,868.23-12,236.40

Finding the Fourth Proportional to 20,193.39, 27,868.23 and 12,236.40

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Solution

The fourth proportional to 20,193.39, 27,868.23 and 12,236.40 is: 16,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.39 : 27,868.23 = 12,236.40 : x
  2. Step 2: Convert to fraction form
    20,193.39/27,868.23 = 12,236.40/x
  3. Step 3: Cross multiply
    20,193.39x = 27,868.23 × 12,236.40
  4. Step 4: Simplify right side
    20,193.39x = 341,006,809.57
  5. Step 5: Solve for x
    x = 341,006,809.57/20,193.39
  6. Step 6: Final answer
    x = 16,887.05

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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.