Home / 18,079.52-27,119.32-4,931.87

Finding the Fourth Proportional to 18,079.52, 27,119.32 and 4,931.87

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Solution

The fourth proportional to 18,079.52, 27,119.32 and 4,931.87 is: 7,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.52 : 27,119.32 = 4,931.87 : x
  2. Step 2: Convert to fraction form
    18,079.52/27,119.32 = 4,931.87/x
  3. Step 3: Cross multiply
    18,079.52x = 27,119.32 × 4,931.87
  4. Step 4: Simplify right side
    18,079.52x = 133,748,812.80
  5. Step 5: Solve for x
    x = 133,748,812.80/18,079.52
  6. Step 6: Final answer
    x = 7,397.81

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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.