Home / 33,110.40-45,691.38-18,771.57

Finding the Fourth Proportional to 33,110.40, 45,691.38 and 18,771.57

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Solution

The fourth proportional to 33,110.40, 45,691.38 and 18,771.57 is: 25,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,110.40 : 45,691.38 = 18,771.57 : x
  2. Step 2: Convert to fraction form
    33,110.40/45,691.38 = 18,771.57/x
  3. Step 3: Cross multiply
    33,110.40x = 45,691.38 × 18,771.57
  4. Step 4: Simplify right side
    33,110.40x = 857,698,938.07
  5. Step 5: Solve for x
    x = 857,698,938.07/33,110.40
  6. Step 6: Final answer
    x = 25,904.22

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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.