Home / 25,975.20-38,905.20-10,384.80

Finding the Fourth Proportional to 25,975.20, 38,905.20 and 10,384.80

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Solution

The fourth proportional to 25,975.20, 38,905.20 and 10,384.80 is: 15,554.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,975.20 : 38,905.20 = 10,384.80 : x
  2. Step 2: Convert to fraction form
    25,975.20/38,905.20 = 10,384.80/x
  3. Step 3: Cross multiply
    25,975.20x = 38,905.20 × 10,384.80
  4. Step 4: Simplify right side
    25,975.20x = 404,022,720.96
  5. Step 5: Solve for x
    x = 404,022,720.96/25,975.20
  6. Step 6: Final answer
    x = 15,554.17

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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.