Home / 39,286.20-54,216.34-22,290.50

Finding the Fourth Proportional to 39,286.20, 54,216.34 and 22,290.50

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Solution

The fourth proportional to 39,286.20, 54,216.34 and 22,290.50 is: 30,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286.20 : 54,216.34 = 22,290.50 : x
  2. Step 2: Convert to fraction form
    39,286.20/54,216.34 = 22,290.50/x
  3. Step 3: Cross multiply
    39,286.20x = 54,216.34 × 22,290.50
  4. Step 4: Simplify right side
    39,286.20x = 1,208,509,326.77
  5. Step 5: Solve for x
    x = 1,208,509,326.77/39,286.20
  6. Step 6: Final answer
    x = 30,761.68

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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.