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Finding the Third Proportional to 21,528.28 and 54,205.14

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Solution

The third proportional to 21,528.28 and 54,205.14 is: 136,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.28 : 54,205.14 = 54,205.14 : x
  2. Step 2: Convert to fraction form
    21,528.28/54,205.14 = 54,205.14/x
  3. Step 3: Cross multiply
    21,528.28x = 54,205.14 × 54,205.14
  4. Step 4: Simplify right side
    21,528.28x = 2,938,196,846.70
  5. Step 5: Solve for x
    x = 2,938,196,846.70/21,528.28
  6. Step 6: Final answer
    x = 136,480.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.