Home / 28,286.62-39,036.15-15,539.96

Finding the Fourth Proportional to 28,286.62, 39,036.15 and 15,539.96

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Solution

The fourth proportional to 28,286.62, 39,036.15 and 15,539.96 is: 21,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.62 : 39,036.15 = 15,539.96 : x
  2. Step 2: Convert to fraction form
    28,286.62/39,036.15 = 15,539.96/x
  3. Step 3: Cross multiply
    28,286.62x = 39,036.15 × 15,539.96
  4. Step 4: Simplify right side
    28,286.62x = 606,620,307.14
  5. Step 5: Solve for x
    x = 606,620,307.14/28,286.62
  6. Step 6: Final answer
    x = 21,445.49

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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.