Home / 36,498.16-54,730.20-18,963.28

Finding the Fourth Proportional to 36,498.16, 54,730.20 and 18,963.28

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Solution

The fourth proportional to 36,498.16, 54,730.20 and 18,963.28 is: 28,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,498.16 : 54,730.20 = 18,963.28 : x
  2. Step 2: Convert to fraction form
    36,498.16/54,730.20 = 18,963.28/x
  3. Step 3: Cross multiply
    36,498.16x = 54,730.20 × 18,963.28
  4. Step 4: Simplify right side
    36,498.16x = 1,037,864,107.06
  5. Step 5: Solve for x
    x = 1,037,864,107.06/36,498.16
  6. Step 6: Final answer
    x = 28,436.07

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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.