Home / 20,190.96-27,862.56-12,232.68

Finding the Fourth Proportional to 20,190.96, 27,862.56 and 12,232.68

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Solution

The fourth proportional to 20,190.96, 27,862.56 and 12,232.68 is: 16,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.96 : 27,862.56 = 12,232.68 : x
  2. Step 2: Convert to fraction form
    20,190.96/27,862.56 = 12,232.68/x
  3. Step 3: Cross multiply
    20,190.96x = 27,862.56 × 12,232.68
  4. Step 4: Simplify right side
    20,190.96x = 340,833,780.46
  5. Step 5: Solve for x
    x = 340,833,780.46/20,190.96
  6. Step 6: Final answer
    x = 16,880.51

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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.