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Finding the Fourth Proportional to 22,490.76, 33,706.98 and 12,090.36

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Solution

The fourth proportional to 22,490.76, 33,706.98 and 12,090.36 is: 18,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.76 : 33,706.98 = 12,090.36 : x
  2. Step 2: Convert to fraction form
    22,490.76/33,706.98 = 12,090.36/x
  3. Step 3: Cross multiply
    22,490.76x = 33,706.98 × 12,090.36
  4. Step 4: Simplify right side
    22,490.76x = 407,529,522.71
  5. Step 5: Solve for x
    x = 407,529,522.71/22,490.76
  6. Step 6: Final answer
    x = 18,119.86

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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.