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Finding the Third Proportional to 20,393.81 and 28,719.56

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Solution

The third proportional to 20,393.81 and 28,719.56 is: 40,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.81 : 28,719.56 = 28,719.56 : x
  2. Step 2: Convert to fraction form
    20,393.81/28,719.56 = 28,719.56/x
  3. Step 3: Cross multiply
    20,393.81x = 28,719.56 × 28,719.56
  4. Step 4: Simplify right side
    20,393.81x = 824,813,270.19
  5. Step 5: Solve for x
    x = 824,813,270.19/20,393.81
  6. Step 6: Final answer
    x = 40,444.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.