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Finding the Fourth Proportional to 22,335, 30,822.30 and 12,399

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Solution

The fourth proportional to 22,335, 30,822.30 and 12,399 is: 17,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,335 : 30,822.30 = 12,399 : x
  2. Step 2: Convert to fraction form
    22,335/30,822.30 = 12,399/x
  3. Step 3: Cross multiply
    22,335x = 30,822.30 × 12,399
  4. Step 4: Simplify right side
    22,335x = 382,165,697.70
  5. Step 5: Solve for x
    x = 382,165,697.70/22,335
  6. Step 6: Final answer
    x = 17,110.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.