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Finding the Third Proportional to 21,998 and 29,887

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Solution

The third proportional to 21,998 and 29,887 is: 40,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998 : 29,887 = 29,887 : x
  2. Step 2: Convert to fraction form
    21,998/29,887 = 29,887/x
  3. Step 3: Cross multiply
    21,998x = 29,887 × 29,887
  4. Step 4: Simplify right side
    21,998x = 893,232,769
  5. Step 5: Solve for x
    x = 893,232,769/21,998
  6. Step 6: Final answer
    x = 40,605.18

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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.