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Finding the Fourth Proportional to 29,706.81, 41,008.05 and 20,018.40

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Solution

The fourth proportional to 29,706.81, 41,008.05 and 20,018.40 is: 27,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,706.81 : 41,008.05 = 20,018.40 : x
  2. Step 2: Convert to fraction form
    29,706.81/41,008.05 = 20,018.40/x
  3. Step 3: Cross multiply
    29,706.81x = 41,008.05 × 20,018.40
  4. Step 4: Simplify right side
    29,706.81x = 820,915,548.12
  5. Step 5: Solve for x
    x = 820,915,548.12/29,706.81
  6. Step 6: Final answer
    x = 27,633.92

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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.