Home / 19,727.28-27,226.38-12,558

Finding the Fourth Proportional to 19,727.28, 27,226.38 and 12,558

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Solution

The fourth proportional to 19,727.28, 27,226.38 and 12,558 is: 17,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,727.28 : 27,226.38 = 12,558 : x
  2. Step 2: Convert to fraction form
    19,727.28/27,226.38 = 12,558/x
  3. Step 3: Cross multiply
    19,727.28x = 27,226.38 × 12,558
  4. Step 4: Simplify right side
    19,727.28x = 341,908,880.04
  5. Step 5: Solve for x
    x = 341,908,880.04/19,727.28
  6. Step 6: Final answer
    x = 17,331.78

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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.