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Finding the Third Proportional to 21,143 and 46,471.50

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Solution

The third proportional to 21,143 and 46,471.50 is: 102,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143 : 46,471.50 = 46,471.50 : x
  2. Step 2: Convert to fraction form
    21,143/46,471.50 = 46,471.50/x
  3. Step 3: Cross multiply
    21,143x = 46,471.50 × 46,471.50
  4. Step 4: Simplify right side
    21,143x = 2,159,600,312.25
  5. Step 5: Solve for x
    x = 2,159,600,312.25/21,143
  6. Step 6: Final answer
    x = 102,142.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.