Home / 28,414.87-39,211.09-15,837.19

Finding the Fourth Proportional to 28,414.87, 39,211.09 and 15,837.19

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Solution

The fourth proportional to 28,414.87, 39,211.09 and 15,837.19 is: 21,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.87 : 39,211.09 = 15,837.19 : x
  2. Step 2: Convert to fraction form
    28,414.87/39,211.09 = 15,837.19/x
  3. Step 3: Cross multiply
    28,414.87x = 39,211.09 × 15,837.19
  4. Step 4: Simplify right side
    28,414.87x = 620,993,482.44
  5. Step 5: Solve for x
    x = 620,993,482.44/28,414.87
  6. Step 6: Final answer
    x = 21,854.52

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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.