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Finding the Fourth Proportional to 22,242.67, 30,705.99 and 12,809.41

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Solution

The fourth proportional to 22,242.67, 30,705.99 and 12,809.41 is: 17,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,242.67 : 30,705.99 = 12,809.41 : x
  2. Step 2: Convert to fraction form
    22,242.67/30,705.99 = 12,809.41/x
  3. Step 3: Cross multiply
    22,242.67x = 30,705.99 × 12,809.41
  4. Step 4: Simplify right side
    22,242.67x = 393,325,490.57
  5. Step 5: Solve for x
    x = 393,325,490.57/22,242.67
  6. Step 6: Final answer
    x = 17,683.38

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1.5x scale

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.