Home / 39,930.85-59,896.28-18,863.97

Finding the Fourth Proportional to 39,930.85, 59,896.28 and 18,863.97

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Solution

The fourth proportional to 39,930.85, 59,896.28 and 18,863.97 is: 28,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.85 : 59,896.28 = 18,863.97 : x
  2. Step 2: Convert to fraction form
    39,930.85/59,896.28 = 18,863.97/x
  3. Step 3: Cross multiply
    39,930.85x = 59,896.28 × 18,863.97
  4. Step 4: Simplify right side
    39,930.85x = 1,129,881,629.03
  5. Step 5: Solve for x
    x = 1,129,881,629.03/39,930.85
  6. Step 6: Final answer
    x = 28,295.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.