Home / 31,455.61-47,191.58-11,734.31

Finding the Fourth Proportional to 31,455.61, 47,191.58 and 11,734.31

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Solution

The fourth proportional to 31,455.61, 47,191.58 and 11,734.31 is: 17,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.61 : 47,191.58 = 11,734.31 : x
  2. Step 2: Convert to fraction form
    31,455.61/47,191.58 = 11,734.31/x
  3. Step 3: Cross multiply
    31,455.61x = 47,191.58 × 11,734.31
  4. Step 4: Simplify right side
    31,455.61x = 553,760,732.42
  5. Step 5: Solve for x
    x = 553,760,732.42/31,455.61
  6. Step 6: Final answer
    x = 17,604.52

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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.