Home / 39,770.75-54,883.82-21,866.91

Finding the Fourth Proportional to 39,770.75, 54,883.82 and 21,866.91

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Solution

The fourth proportional to 39,770.75, 54,883.82 and 21,866.91 is: 30,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,770.75 : 54,883.82 = 21,866.91 : x
  2. Step 2: Convert to fraction form
    39,770.75/54,883.82 = 21,866.91/x
  3. Step 3: Cross multiply
    39,770.75x = 54,883.82 × 21,866.91
  4. Step 4: Simplify right side
    39,770.75x = 1,200,139,443.06
  5. Step 5: Solve for x
    x = 1,200,139,443.06/39,770.75
  6. Step 6: Final answer
    x = 30,176.44

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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.