Home / 20,226.16-27,911.10-11,274.40

Finding the Fourth Proportional to 20,226.16, 27,911.10 and 11,274.40

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Solution

The fourth proportional to 20,226.16, 27,911.10 and 11,274.40 is: 15,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.16 : 27,911.10 = 11,274.40 : x
  2. Step 2: Convert to fraction form
    20,226.16/27,911.10 = 11,274.40/x
  3. Step 3: Cross multiply
    20,226.16x = 27,911.10 × 11,274.40
  4. Step 4: Simplify right side
    20,226.16x = 314,680,905.84
  5. Step 5: Solve for x
    x = 314,680,905.84/20,226.16
  6. Step 6: Final answer
    x = 15,558.11

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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.