Home / 25,709.28-38,578.44-11,858.28

Finding the Fourth Proportional to 25,709.28, 38,578.44 and 11,858.28

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Solution

The fourth proportional to 25,709.28, 38,578.44 and 11,858.28 is: 17,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,709.28 : 38,578.44 = 11,858.28 : x
  2. Step 2: Convert to fraction form
    25,709.28/38,578.44 = 11,858.28/x
  3. Step 3: Cross multiply
    25,709.28x = 38,578.44 × 11,858.28
  4. Step 4: Simplify right side
    25,709.28x = 457,473,943.48
  5. Step 5: Solve for x
    x = 457,473,943.48/25,709.28
  6. Step 6: Final answer
    x = 17,794.12

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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.