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Finding the Fourth Proportional to 22,605.80, 34,037.99 and 21,223.40

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Solution

The fourth proportional to 22,605.80, 34,037.99 and 21,223.40 is: 31,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,605.80 : 34,037.99 = 21,223.40 : x
  2. Step 2: Convert to fraction form
    22,605.80/34,037.99 = 21,223.40/x
  3. Step 3: Cross multiply
    22,605.80x = 34,037.99 × 21,223.40
  4. Step 4: Simplify right side
    22,605.80x = 722,401,876.97
  5. Step 5: Solve for x
    x = 722,401,876.97/22,605.80
  6. Step 6: Final answer
    x = 31,956.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.