Home / 28,644.86-39,521.82-18,573.72

Finding the Fourth Proportional to 28,644.86, 39,521.82 and 18,573.72

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Solution

The fourth proportional to 28,644.86, 39,521.82 and 18,573.72 is: 25,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.86 : 39,521.82 = 18,573.72 : x
  2. Step 2: Convert to fraction form
    28,644.86/39,521.82 = 18,573.72/x
  3. Step 3: Cross multiply
    28,644.86x = 39,521.82 × 18,573.72
  4. Step 4: Simplify right side
    28,644.86x = 734,067,218.57
  5. Step 5: Solve for x
    x = 734,067,218.57/28,644.86
  6. Step 6: Final answer
    x = 25,626.49

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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.