Home / 31,976.40-47,923.54-15,311.46

Finding the Fourth Proportional to 31,976.40, 47,923.54 and 15,311.46

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Solution

The fourth proportional to 31,976.40, 47,923.54 and 15,311.46 is: 22,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976.40 : 47,923.54 = 15,311.46 : x
  2. Step 2: Convert to fraction form
    31,976.40/47,923.54 = 15,311.46/x
  3. Step 3: Cross multiply
    31,976.40x = 47,923.54 × 15,311.46
  4. Step 4: Simplify right side
    31,976.40x = 733,779,365.77
  5. Step 5: Solve for x
    x = 733,779,365.77/31,976.40
  6. Step 6: Final answer
    x = 22,947.53

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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.