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Finding the Fourth Proportional to 22,637.81, 33,990.03 and 12,662.10

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Solution

The fourth proportional to 22,637.81, 33,990.03 and 12,662.10 is: 19,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.81 : 33,990.03 = 12,662.10 : x
  2. Step 2: Convert to fraction form
    22,637.81/33,990.03 = 12,662.10/x
  3. Step 3: Cross multiply
    22,637.81x = 33,990.03 × 12,662.10
  4. Step 4: Simplify right side
    22,637.81x = 430,385,158.86
  5. Step 5: Solve for x
    x = 430,385,158.86/22,637.81
  6. Step 6: Final answer
    x = 19,011.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.