Home / 33,311.76-45,958.26-21,381.66

Finding the Fourth Proportional to 33,311.76, 45,958.26 and 21,381.66

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Solution

The fourth proportional to 33,311.76, 45,958.26 and 21,381.66 is: 29,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,311.76 : 45,958.26 = 21,381.66 : x
  2. Step 2: Convert to fraction form
    33,311.76/45,958.26 = 21,381.66/x
  3. Step 3: Cross multiply
    33,311.76x = 45,958.26 × 21,381.66
  4. Step 4: Simplify right side
    33,311.76x = 982,663,889.51
  5. Step 5: Solve for x
    x = 982,663,889.51/33,311.76
  6. Step 6: Final answer
    x = 29,499.01

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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.