Home / 31,370.40-47,121.21-26,449.65

Finding the Fourth Proportional to 31,370.40, 47,121.21 and 26,449.65

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Solution

The fourth proportional to 31,370.40, 47,121.21 and 26,449.65 is: 39,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.40 : 47,121.21 = 26,449.65 : x
  2. Step 2: Convert to fraction form
    31,370.40/47,121.21 = 26,449.65/x
  3. Step 3: Cross multiply
    31,370.40x = 47,121.21 × 26,449.65
  4. Step 4: Simplify right side
    31,370.40x = 1,246,339,512.08
  5. Step 5: Solve for x
    x = 1,246,339,512.08/31,370.40
  6. Step 6: Final answer
    x = 39,729.79

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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.