Home / 31,480.44-47,207.29-11,745.19

Finding the Fourth Proportional to 31,480.44, 47,207.29 and 11,745.19

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Solution

The fourth proportional to 31,480.44, 47,207.29 and 11,745.19 is: 17,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.44 : 47,207.29 = 11,745.19 : x
  2. Step 2: Convert to fraction form
    31,480.44/47,207.29 = 11,745.19/x
  3. Step 3: Cross multiply
    31,480.44x = 47,207.29 × 11,745.19
  4. Step 4: Simplify right side
    31,480.44x = 554,458,590.44
  5. Step 5: Solve for x
    x = 554,458,590.44/31,480.44
  6. Step 6: Final answer
    x = 17,612.80

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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.