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Finding the Fourth Proportional to 33,158.40, 49,672.80 and 19,971.60

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Solution

The fourth proportional to 33,158.40, 49,672.80 and 19,971.60 is: 29,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,158.40 : 49,672.80 = 19,971.60 : x
  2. Step 2: Convert to fraction form
    33,158.40/49,672.80 = 19,971.60/x
  3. Step 3: Cross multiply
    33,158.40x = 49,672.80 × 19,971.60
  4. Step 4: Simplify right side
    33,158.40x = 992,045,292.48
  5. Step 5: Solve for x
    x = 992,045,292.48/33,158.40
  6. Step 6: Final answer
    x = 29,918.37

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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.