Home / 31,531.60-47,296.03-7,838.65

Finding the Fourth Proportional to 31,531.60, 47,296.03 and 7,838.65

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Solution

The fourth proportional to 31,531.60, 47,296.03 and 7,838.65 is: 11,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.60 : 47,296.03 = 7,838.65 : x
  2. Step 2: Convert to fraction form
    31,531.60/47,296.03 = 7,838.65/x
  3. Step 3: Cross multiply
    31,531.60x = 47,296.03 × 7,838.65
  4. Step 4: Simplify right side
    31,531.60x = 370,736,976.24
  5. Step 5: Solve for x
    x = 370,736,976.24/31,531.60
  6. Step 6: Final answer
    x = 11,757.63

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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.