Home / 28,181.25-38,891.34-15,606

Finding the Fourth Proportional to 28,181.25, 38,891.34 and 15,606

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Solution

The fourth proportional to 28,181.25, 38,891.34 and 15,606 is: 21,536.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.25 : 38,891.34 = 15,606 : x
  2. Step 2: Convert to fraction form
    28,181.25/38,891.34 = 15,606/x
  3. Step 3: Cross multiply
    28,181.25x = 38,891.34 × 15,606
  4. Step 4: Simplify right side
    28,181.25x = 606,938,252.04
  5. Step 5: Solve for x
    x = 606,938,252.04/28,181.25
  6. Step 6: Final answer
    x = 21,536.95

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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.