Home / 25,967.47-38,920.46-11,915.66

Finding the Fourth Proportional to 25,967.47, 38,920.46 and 11,915.66

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Solution

The fourth proportional to 25,967.47, 38,920.46 and 11,915.66 is: 17,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,967.47 : 38,920.46 = 11,915.66 : x
  2. Step 2: Convert to fraction form
    25,967.47/38,920.46 = 11,915.66/x
  3. Step 3: Cross multiply
    25,967.47x = 38,920.46 × 11,915.66
  4. Step 4: Simplify right side
    25,967.47x = 463,762,795.58
  5. Step 5: Solve for x
    x = 463,762,795.58/25,967.47
  6. Step 6: Final answer
    x = 17,859.37

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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.