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Finding the Third Proportional to 15,415 and 33,622.50

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Solution

The third proportional to 15,415 and 33,622.50 is: 73,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415 : 33,622.50 = 33,622.50 : x
  2. Step 2: Convert to fraction form
    15,415/33,622.50 = 33,622.50/x
  3. Step 3: Cross multiply
    15,415x = 33,622.50 × 33,622.50
  4. Step 4: Simplify right side
    15,415x = 1,130,472,506.25
  5. Step 5: Solve for x
    x = 1,130,472,506.25/15,415
  6. Step 6: Final answer
    x = 73,335.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.