Home / 25,831.68-38,751.80-9,188.21

Finding the Fourth Proportional to 25,831.68, 38,751.80 and 9,188.21

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Solution

The fourth proportional to 25,831.68, 38,751.80 and 9,188.21 is: 13,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.68 : 38,751.80 = 9,188.21 : x
  2. Step 2: Convert to fraction form
    25,831.68/38,751.80 = 9,188.21/x
  3. Step 3: Cross multiply
    25,831.68x = 38,751.80 × 9,188.21
  4. Step 4: Simplify right side
    25,831.68x = 356,059,436.58
  5. Step 5: Solve for x
    x = 356,059,436.58/25,831.68
  6. Step 6: Final answer
    x = 13,783.83

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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.