Home / 31,979.10-47,964.45-9,794.70

Finding the Fourth Proportional to 31,979.10, 47,964.45 and 9,794.70

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Solution

The fourth proportional to 31,979.10, 47,964.45 and 9,794.70 is: 14,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.10 : 47,964.45 = 9,794.70 : x
  2. Step 2: Convert to fraction form
    31,979.10/47,964.45 = 9,794.70/x
  3. Step 3: Cross multiply
    31,979.10x = 47,964.45 × 9,794.70
  4. Step 4: Simplify right side
    31,979.10x = 469,797,398.42
  5. Step 5: Solve for x
    x = 469,797,398.42/31,979.10
  6. Step 6: Final answer
    x = 14,690.76

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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.