Home / 28,181.38-38,891.52-15,606.13

Finding the Fourth Proportional to 28,181.38, 38,891.52 and 15,606.13

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Solution

The fourth proportional to 28,181.38, 38,891.52 and 15,606.13 is: 21,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.38 : 38,891.52 = 15,606.13 : x
  2. Step 2: Convert to fraction form
    28,181.38/38,891.52 = 15,606.13/x
  3. Step 3: Cross multiply
    28,181.38x = 38,891.52 × 15,606.13
  4. Step 4: Simplify right side
    28,181.38x = 606,945,922.56
  5. Step 5: Solve for x
    x = 606,945,922.56/28,181.38
  6. Step 6: Final answer
    x = 21,537.13

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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.