Home / 18,079.42-27,118.32-4,931.86

Finding the Fourth Proportional to 18,079.42, 27,118.32 and 4,931.86

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Solution

The fourth proportional to 18,079.42, 27,118.32 and 4,931.86 is: 7,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.42 : 27,118.32 = 4,931.86 : x
  2. Step 2: Convert to fraction form
    18,079.42/27,118.32 = 4,931.86/x
  3. Step 3: Cross multiply
    18,079.42x = 27,118.32 × 4,931.86
  4. Step 4: Simplify right side
    18,079.42x = 133,743,757.68
  5. Step 5: Solve for x
    x = 133,743,757.68/18,079.42
  6. Step 6: Final answer
    x = 7,397.57

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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.