Home / 33,177.60-45,768.96-21,231.36

Finding the Fourth Proportional to 33,177.60, 45,768.96 and 21,231.36

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Solution

The fourth proportional to 33,177.60, 45,768.96 and 21,231.36 is: 29,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,177.60 : 45,768.96 = 21,231.36 : x
  2. Step 2: Convert to fraction form
    33,177.60/45,768.96 = 21,231.36/x
  3. Step 3: Cross multiply
    33,177.60x = 45,768.96 × 21,231.36
  4. Step 4: Simplify right side
    33,177.60x = 971,737,266.59
  5. Step 5: Solve for x
    x = 971,737,266.59/33,177.60
  6. Step 6: Final answer
    x = 29,288.96

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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.