Home / 25,895.04-38,831.76-8,121.12

Finding the Fourth Proportional to 25,895.04, 38,831.76 and 8,121.12

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Solution

The fourth proportional to 25,895.04, 38,831.76 and 8,121.12 is: 12,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,895.04 : 38,831.76 = 8,121.12 : x
  2. Step 2: Convert to fraction form
    25,895.04/38,831.76 = 8,121.12/x
  3. Step 3: Cross multiply
    25,895.04x = 38,831.76 × 8,121.12
  4. Step 4: Simplify right side
    25,895.04x = 315,357,382.77
  5. Step 5: Solve for x
    x = 315,357,382.77/25,895.04
  6. Step 6: Final answer
    x = 12,178.29

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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.