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Finding the Fourth Proportional to 19,962, 29,942.19 and 5,921.46

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Solution

The fourth proportional to 19,962, 29,942.19 and 5,921.46 is: 8,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962 : 29,942.19 = 5,921.46 : x
  2. Step 2: Convert to fraction form
    19,962/29,942.19 = 5,921.46/x
  3. Step 3: Cross multiply
    19,962x = 29,942.19 × 5,921.46
  4. Step 4: Simplify right side
    19,962x = 177,301,480.40
  5. Step 5: Solve for x
    x = 177,301,480.40/19,962
  6. Step 6: Final answer
    x = 8,881.95

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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.