Home / 20,225.28-27,906.18-12,265.92

Finding the Fourth Proportional to 20,225.28, 27,906.18 and 12,265.92

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Solution

The fourth proportional to 20,225.28, 27,906.18 and 12,265.92 is: 16,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.28 : 27,906.18 = 12,265.92 : x
  2. Step 2: Convert to fraction form
    20,225.28/27,906.18 = 12,265.92/x
  3. Step 3: Cross multiply
    20,225.28x = 27,906.18 × 12,265.92
  4. Step 4: Simplify right side
    20,225.28x = 342,294,971.39
  5. Step 5: Solve for x
    x = 342,294,971.39/20,225.28
  6. Step 6: Final answer
    x = 16,924.12

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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.