Home / 20,274.84-27,979.22-11,322.32

Finding the Fourth Proportional to 20,274.84, 27,979.22 and 11,322.32

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Solution

The fourth proportional to 20,274.84, 27,979.22 and 11,322.32 is: 15,624.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.84 : 27,979.22 = 11,322.32 : x
  2. Step 2: Convert to fraction form
    20,274.84/27,979.22 = 11,322.32/x
  3. Step 3: Cross multiply
    20,274.84x = 27,979.22 × 11,322.32
  4. Step 4: Simplify right side
    20,274.84x = 316,789,570.60
  5. Step 5: Solve for x
    x = 316,789,570.60/20,274.84
  6. Step 6: Final answer
    x = 15,624.76

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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.