Home / 35,120.28-48,491.34-21,709.92

Finding the Fourth Proportional to 35,120.28, 48,491.34 and 21,709.92

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Solution

The fourth proportional to 35,120.28, 48,491.34 and 21,709.92 is: 29,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.28 : 48,491.34 = 21,709.92 : x
  2. Step 2: Convert to fraction form
    35,120.28/48,491.34 = 21,709.92/x
  3. Step 3: Cross multiply
    35,120.28x = 48,491.34 × 21,709.92
  4. Step 4: Simplify right side
    35,120.28x = 1,052,743,112.09
  5. Step 5: Solve for x
    x = 1,052,743,112.09/35,120.28
  6. Step 6: Final answer
    x = 29,975.36

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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.