Home / 33,119.79-45,697.29-21,015.87

Finding the Fourth Proportional to 33,119.79, 45,697.29 and 21,015.87

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Solution

The fourth proportional to 33,119.79, 45,697.29 and 21,015.87 is: 28,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,119.79 : 45,697.29 = 21,015.87 : x
  2. Step 2: Convert to fraction form
    33,119.79/45,697.29 = 21,015.87/x
  3. Step 3: Cross multiply
    33,119.79x = 45,697.29 × 21,015.87
  4. Step 4: Simplify right side
    33,119.79x = 960,368,305.99
  5. Step 5: Solve for x
    x = 960,368,305.99/33,119.79
  6. Step 6: Final answer
    x = 28,996.81

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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.