Home / 36,072.79-49,780.60-19,720.33

Finding the Fourth Proportional to 36,072.79, 49,780.60 and 19,720.33

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Solution

The fourth proportional to 36,072.79, 49,780.60 and 19,720.33 is: 27,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,072.79 : 49,780.60 = 19,720.33 : x
  2. Step 2: Convert to fraction form
    36,072.79/49,780.60 = 19,720.33/x
  3. Step 3: Cross multiply
    36,072.79x = 49,780.60 × 19,720.33
  4. Step 4: Simplify right side
    36,072.79x = 981,689,759.80
  5. Step 5: Solve for x
    x = 981,689,759.80/36,072.79
  6. Step 6: Final answer
    x = 27,214.14

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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.