Home / 13,631.52-20,443.20-4,864.44

Finding the Fourth Proportional to 13,631.52, 20,443.20 and 4,864.44

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Solution

The fourth proportional to 13,631.52, 20,443.20 and 4,864.44 is: 7,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.52 : 20,443.20 = 4,864.44 : x
  2. Step 2: Convert to fraction form
    13,631.52/20,443.20 = 4,864.44/x
  3. Step 3: Cross multiply
    13,631.52x = 20,443.20 × 4,864.44
  4. Step 4: Simplify right side
    13,631.52x = 99,444,719.81
  5. Step 5: Solve for x
    x = 99,444,719.81/13,631.52
  6. Step 6: Final answer
    x = 7,295.20

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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.