Home / 20,218.28-27,906.20-13,056.19

Finding the Fourth Proportional to 20,218.28, 27,906.20 and 13,056.19

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Solution

The fourth proportional to 20,218.28, 27,906.20 and 13,056.19 is: 18,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.28 : 27,906.20 = 13,056.19 : x
  2. Step 2: Convert to fraction form
    20,218.28/27,906.20 = 13,056.19/x
  3. Step 3: Cross multiply
    20,218.28x = 27,906.20 × 13,056.19
  4. Step 4: Simplify right side
    20,218.28x = 364,348,526.57
  5. Step 5: Solve for x
    x = 364,348,526.57/20,218.28
  6. Step 6: Final answer
    x = 18,020.74

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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.