Home / 39,930.76-55,104.08-22,025.90

Finding the Fourth Proportional to 39,930.76, 55,104.08 and 22,025.90

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Solution

The fourth proportional to 39,930.76, 55,104.08 and 22,025.90 is: 30,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.76 : 55,104.08 = 22,025.90 : x
  2. Step 2: Convert to fraction form
    39,930.76/55,104.08 = 22,025.90/x
  3. Step 3: Cross multiply
    39,930.76x = 55,104.08 × 22,025.90
  4. Step 4: Simplify right side
    39,930.76x = 1,213,716,955.67
  5. Step 5: Solve for x
    x = 1,213,716,955.67/39,930.76
  6. Step 6: Final answer
    x = 30,395.54

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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.