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Finding the Third Proportional to 20,953.50 and 28,473.75

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Solution

The third proportional to 20,953.50 and 28,473.75 is: 38,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.50 : 28,473.75 = 28,473.75 : x
  2. Step 2: Convert to fraction form
    20,953.50/28,473.75 = 28,473.75/x
  3. Step 3: Cross multiply
    20,953.50x = 28,473.75 × 28,473.75
  4. Step 4: Simplify right side
    20,953.50x = 810,754,439.06
  5. Step 5: Solve for x
    x = 810,754,439.06/20,953.50
  6. Step 6: Final answer
    x = 38,693.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.