Home / 31,409.45-47,121.46-10,348.74

Finding the Fourth Proportional to 31,409.45, 47,121.46 and 10,348.74

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Solution

The fourth proportional to 31,409.45, 47,121.46 and 10,348.74 is: 15,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.45 : 47,121.46 = 10,348.74 : x
  2. Step 2: Convert to fraction form
    31,409.45/47,121.46 = 10,348.74/x
  3. Step 3: Cross multiply
    31,409.45x = 47,121.46 × 10,348.74
  4. Step 4: Simplify right side
    31,409.45x = 487,647,712.09
  5. Step 5: Solve for x
    x = 487,647,712.09/31,409.45
  6. Step 6: Final answer
    x = 15,525.51

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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.