Home / 31,342.24-47,012.64-7,968.70

Finding the Fourth Proportional to 31,342.24, 47,012.64 and 7,968.70

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Solution

The fourth proportional to 31,342.24, 47,012.64 and 7,968.70 is: 11,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,342.24 : 47,012.64 = 7,968.70 : x
  2. Step 2: Convert to fraction form
    31,342.24/47,012.64 = 7,968.70/x
  3. Step 3: Cross multiply
    31,342.24x = 47,012.64 × 7,968.70
  4. Step 4: Simplify right side
    31,342.24x = 374,629,624.37
  5. Step 5: Solve for x
    x = 374,629,624.37/31,342.24
  6. Step 6: Final answer
    x = 11,952.87

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1.5x scale

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.