Home / 28,195.14-38,907.61-15,618.98

Finding the Fourth Proportional to 28,195.14, 38,907.61 and 15,618.98

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Solution

The fourth proportional to 28,195.14, 38,907.61 and 15,618.98 is: 21,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.14 : 38,907.61 = 15,618.98 : x
  2. Step 2: Convert to fraction form
    28,195.14/38,907.61 = 15,618.98/x
  3. Step 3: Cross multiply
    28,195.14x = 38,907.61 × 15,618.98
  4. Step 4: Simplify right side
    28,195.14x = 607,697,182.44
  5. Step 5: Solve for x
    x = 607,697,182.44/28,195.14
  6. Step 6: Final answer
    x = 21,553.26

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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.