Home / 25,863.78-38,812.66-14,185.20

Finding the Fourth Proportional to 25,863.78, 38,812.66 and 14,185.20

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Solution

The fourth proportional to 25,863.78, 38,812.66 and 14,185.20 is: 21,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,863.78 : 38,812.66 = 14,185.20 : x
  2. Step 2: Convert to fraction form
    25,863.78/38,812.66 = 14,185.20/x
  3. Step 3: Cross multiply
    25,863.78x = 38,812.66 × 14,185.20
  4. Step 4: Simplify right side
    25,863.78x = 550,565,344.63
  5. Step 5: Solve for x
    x = 550,565,344.63/25,863.78
  6. Step 6: Final answer
    x = 21,287.12

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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.