Home / 25,837.20-38,759.04-12,678.48

Finding the Fourth Proportional to 25,837.20, 38,759.04 and 12,678.48

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Solution

The fourth proportional to 25,837.20, 38,759.04 and 12,678.48 is: 19,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,837.20 : 38,759.04 = 12,678.48 : x
  2. Step 2: Convert to fraction form
    25,837.20/38,759.04 = 12,678.48/x
  3. Step 3: Cross multiply
    25,837.20x = 38,759.04 × 12,678.48
  4. Step 4: Simplify right side
    25,837.20x = 491,405,713.46
  5. Step 5: Solve for x
    x = 491,405,713.46/25,837.20
  6. Step 6: Final answer
    x = 19,019.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.