Home / 39,454.20-54,434.16-28,125.72

Finding the Fourth Proportional to 39,454.20, 54,434.16 and 28,125.72

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Solution

The fourth proportional to 39,454.20, 54,434.16 and 28,125.72 is: 38,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.20 : 54,434.16 = 28,125.72 : x
  2. Step 2: Convert to fraction form
    39,454.20/54,434.16 = 28,125.72/x
  3. Step 3: Cross multiply
    39,454.20x = 54,434.16 × 28,125.72
  4. Step 4: Simplify right side
    39,454.20x = 1,530,999,942.60
  5. Step 5: Solve for x
    x = 1,530,999,942.60/39,454.20
  6. Step 6: Final answer
    x = 38,804.49

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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.