Home / 18,088.72-27,132.84-4,941.20

Finding the Fourth Proportional to 18,088.72, 27,132.84 and 4,941.20

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Solution

The fourth proportional to 18,088.72, 27,132.84 and 4,941.20 is: 7,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.72 : 27,132.84 = 4,941.20 : x
  2. Step 2: Convert to fraction form
    18,088.72/27,132.84 = 4,941.20/x
  3. Step 3: Cross multiply
    18,088.72x = 27,132.84 × 4,941.20
  4. Step 4: Simplify right side
    18,088.72x = 134,068,789.01
  5. Step 5: Solve for x
    x = 134,068,789.01/18,088.72
  6. Step 6: Final answer
    x = 7,411.73

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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.