Home / 25,859.79-38,782.17-11,812.37

Finding the Fourth Proportional to 25,859.79, 38,782.17 and 11,812.37

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Solution

The fourth proportional to 25,859.79, 38,782.17 and 11,812.37 is: 17,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.79 : 38,782.17 = 11,812.37 : x
  2. Step 2: Convert to fraction form
    25,859.79/38,782.17 = 11,812.37/x
  3. Step 3: Cross multiply
    25,859.79x = 38,782.17 × 11,812.37
  4. Step 4: Simplify right side
    25,859.79x = 458,109,147.53
  5. Step 5: Solve for x
    x = 458,109,147.53/25,859.79
  6. Step 6: Final answer
    x = 17,715.11

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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.