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Finding the Third Proportional to 21,316.50 and 33,439.13

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Solution

The third proportional to 21,316.50 and 33,439.13 is: 52,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.50 : 33,439.13 = 33,439.13 : x
  2. Step 2: Convert to fraction form
    21,316.50/33,439.13 = 33,439.13/x
  3. Step 3: Cross multiply
    21,316.50x = 33,439.13 × 33,439.13
  4. Step 4: Simplify right side
    21,316.50x = 1,118,175,080.77
  5. Step 5: Solve for x
    x = 1,118,175,080.77/21,316.50
  6. Step 6: Final answer
    x = 52,455.85

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.