Home / 31,750.26-47,621.75-8,378.52

Finding the Fourth Proportional to 31,750.26, 47,621.75 and 8,378.52

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Solution

The fourth proportional to 31,750.26, 47,621.75 and 8,378.52 is: 12,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.26 : 47,621.75 = 8,378.52 : x
  2. Step 2: Convert to fraction form
    31,750.26/47,621.75 = 8,378.52/x
  3. Step 3: Cross multiply
    31,750.26x = 47,621.75 × 8,378.52
  4. Step 4: Simplify right side
    31,750.26x = 398,999,742.92
  5. Step 5: Solve for x
    x = 398,999,742.92/31,750.26
  6. Step 6: Final answer
    x = 12,566.82

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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.