Home / 28,601.94-39,470.18-15,855.08

Finding the Fourth Proportional to 28,601.94, 39,470.18 and 15,855.08

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Solution

The fourth proportional to 28,601.94, 39,470.18 and 15,855.08 is: 21,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.94 : 39,470.18 = 15,855.08 : x
  2. Step 2: Convert to fraction form
    28,601.94/39,470.18 = 15,855.08/x
  3. Step 3: Cross multiply
    28,601.94x = 39,470.18 × 15,855.08
  4. Step 4: Simplify right side
    28,601.94x = 625,802,584.89
  5. Step 5: Solve for x
    x = 625,802,584.89/28,601.94
  6. Step 6: Final answer
    x = 21,879.73

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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.