Home / 31,658.72-47,475.10-14,116.56

Finding the Fourth Proportional to 31,658.72, 47,475.10 and 14,116.56

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Solution

The fourth proportional to 31,658.72, 47,475.10 and 14,116.56 is: 21,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.72 : 47,475.10 = 14,116.56 : x
  2. Step 2: Convert to fraction form
    31,658.72/47,475.10 = 14,116.56/x
  3. Step 3: Cross multiply
    31,658.72x = 47,475.10 × 14,116.56
  4. Step 4: Simplify right side
    31,658.72x = 670,185,097.66
  5. Step 5: Solve for x
    x = 670,185,097.66/31,658.72
  6. Step 6: Final answer
    x = 21,169.05

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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.