Home / 33,222.90-45,845.28-18,689.22

Finding the Fourth Proportional to 33,222.90, 45,845.28 and 18,689.22

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Solution

The fourth proportional to 33,222.90, 45,845.28 and 18,689.22 is: 25,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,222.90 : 45,845.28 = 18,689.22 : x
  2. Step 2: Convert to fraction form
    33,222.90/45,845.28 = 18,689.22/x
  3. Step 3: Cross multiply
    33,222.90x = 45,845.28 × 18,689.22
  4. Step 4: Simplify right side
    33,222.90x = 856,812,523.88
  5. Step 5: Solve for x
    x = 856,812,523.88/33,222.90
  6. Step 6: Final answer
    x = 25,789.82

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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.