Home / 30,168.92-41,641.19-18,831.59

Finding the Fourth Proportional to 30,168.92, 41,641.19 and 18,831.59

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Solution

The fourth proportional to 30,168.92, 41,641.19 and 18,831.59 is: 25,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.92 : 41,641.19 = 18,831.59 : x
  2. Step 2: Convert to fraction form
    30,168.92/41,641.19 = 18,831.59/x
  3. Step 3: Cross multiply
    30,168.92x = 41,641.19 × 18,831.59
  4. Step 4: Simplify right side
    30,168.92x = 784,169,817.19
  5. Step 5: Solve for x
    x = 784,169,817.19/30,168.92
  6. Step 6: Final answer
    x = 25,992.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.