Home / 39,826.80-54,790.97-38,719.53

Finding the Fourth Proportional to 39,826.80, 54,790.97 and 38,719.53

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Solution

The fourth proportional to 39,826.80, 54,790.97 and 38,719.53 is: 53,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.80 : 54,790.97 = 38,719.53 : x
  2. Step 2: Convert to fraction form
    39,826.80/54,790.97 = 38,719.53/x
  3. Step 3: Cross multiply
    39,826.80x = 54,790.97 × 38,719.53
  4. Step 4: Simplify right side
    39,826.80x = 2,121,480,413.05
  5. Step 5: Solve for x
    x = 2,121,480,413.05/39,826.80
  6. Step 6: Final answer
    x = 53,267.66

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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.