Home / 27,790.47-41,532.71-20,309.58

Finding the Fourth Proportional to 27,790.47, 41,532.71 and 20,309.58

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Solution

The fourth proportional to 27,790.47, 41,532.71 and 20,309.58 is: 30,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.47 : 41,532.71 = 20,309.58 : x
  2. Step 2: Convert to fraction form
    27,790.47/41,532.71 = 20,309.58/x
  3. Step 3: Cross multiply
    27,790.47x = 41,532.71 × 20,309.58
  4. Step 4: Simplify right side
    27,790.47x = 843,511,794.81
  5. Step 5: Solve for x
    x = 843,511,794.81/27,790.47
  6. Step 6: Final answer
    x = 30,352.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.