Home / 31,194.75-46,820.21-21,175.23

Finding the Fourth Proportional to 31,194.75, 46,820.21 and 21,175.23

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Solution

The fourth proportional to 31,194.75, 46,820.21 and 21,175.23 is: 31,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,194.75 : 46,820.21 = 21,175.23 : x
  2. Step 2: Convert to fraction form
    31,194.75/46,820.21 = 21,175.23/x
  3. Step 3: Cross multiply
    31,194.75x = 46,820.21 × 21,175.23
  4. Step 4: Simplify right side
    31,194.75x = 991,428,609.52
  5. Step 5: Solve for x
    x = 991,428,609.52/31,194.75
  6. Step 6: Final answer
    x = 31,781.91

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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.