Home / 20,727.84-28,591.20-16,956.48

Finding the Fourth Proportional to 20,727.84, 28,591.20 and 16,956.48

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Solution

The fourth proportional to 20,727.84, 28,591.20 and 16,956.48 is: 23,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.84 : 28,591.20 = 16,956.48 : x
  2. Step 2: Convert to fraction form
    20,727.84/28,591.20 = 16,956.48/x
  3. Step 3: Cross multiply
    20,727.84x = 28,591.20 × 16,956.48
  4. Step 4: Simplify right side
    20,727.84x = 484,806,110.98
  5. Step 5: Solve for x
    x = 484,806,110.98/20,727.84
  6. Step 6: Final answer
    x = 23,389.13

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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.