Home / 13,731.75-20,585.41-4,964.72

Finding the Fourth Proportional to 13,731.75, 20,585.41 and 4,964.72

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Solution

The fourth proportional to 13,731.75, 20,585.41 and 4,964.72 is: 7,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.75 : 20,585.41 = 4,964.72 : x
  2. Step 2: Convert to fraction form
    13,731.75/20,585.41 = 4,964.72/x
  3. Step 3: Cross multiply
    13,731.75x = 20,585.41 × 4,964.72
  4. Step 4: Simplify right side
    13,731.75x = 102,200,681.40
  5. Step 5: Solve for x
    x = 102,200,681.40/13,731.75
  6. Step 6: Final answer
    x = 7,442.66

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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.