Home / 18,068.85-27,102.72-4,920.81

Finding the Fourth Proportional to 18,068.85, 27,102.72 and 4,920.81

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Solution

The fourth proportional to 18,068.85, 27,102.72 and 4,920.81 is: 7,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.85 : 27,102.72 = 4,920.81 : x
  2. Step 2: Convert to fraction form
    18,068.85/27,102.72 = 4,920.81/x
  3. Step 3: Cross multiply
    18,068.85x = 27,102.72 × 4,920.81
  4. Step 4: Simplify right side
    18,068.85x = 133,367,335.60
  5. Step 5: Solve for x
    x = 133,367,335.60/18,068.85
  6. Step 6: Final answer
    x = 7,381.06

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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.