Home / 25,918.79-38,884.36-8,388.62

Finding the Fourth Proportional to 25,918.79, 38,884.36 and 8,388.62

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Solution

The fourth proportional to 25,918.79, 38,884.36 and 8,388.62 is: 12,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,918.79 : 38,884.36 = 8,388.62 : x
  2. Step 2: Convert to fraction form
    25,918.79/38,884.36 = 8,388.62/x
  3. Step 3: Cross multiply
    25,918.79x = 38,884.36 × 8,388.62
  4. Step 4: Simplify right side
    25,918.79x = 326,186,217.19
  5. Step 5: Solve for x
    x = 326,186,217.19/25,918.79
  6. Step 6: Final answer
    x = 12,584.93

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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.