Home / 28,336.19-39,104.67-15,589.70

Finding the Fourth Proportional to 28,336.19, 39,104.67 and 15,589.70

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Solution

The fourth proportional to 28,336.19, 39,104.67 and 15,589.70 is: 21,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.19 : 39,104.67 = 15,589.70 : x
  2. Step 2: Convert to fraction form
    28,336.19/39,104.67 = 15,589.70/x
  3. Step 3: Cross multiply
    28,336.19x = 39,104.67 × 15,589.70
  4. Step 4: Simplify right side
    28,336.19x = 609,629,878.38
  5. Step 5: Solve for x
    x = 609,629,878.38/28,336.19
  6. Step 6: Final answer
    x = 21,514.18

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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.