Home / 33,098.37-45,686.20-21,161.76

Finding the Fourth Proportional to 33,098.37, 45,686.20 and 21,161.76

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Solution

The fourth proportional to 33,098.37, 45,686.20 and 21,161.76 is: 29,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,098.37 : 45,686.20 = 21,161.76 : x
  2. Step 2: Convert to fraction form
    33,098.37/45,686.20 = 21,161.76/x
  3. Step 3: Cross multiply
    33,098.37x = 45,686.20 × 21,161.76
  4. Step 4: Simplify right side
    33,098.37x = 966,800,274.68
  5. Step 5: Solve for x
    x = 966,800,274.68/33,098.37
  6. Step 6: Final answer
    x = 29,209.90

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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.