Home / 31,180.32-46,743.75-21,290.22

Finding the Fourth Proportional to 31,180.32, 46,743.75 and 21,290.22

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Solution

The fourth proportional to 31,180.32, 46,743.75 and 21,290.22 is: 31,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,180.32 : 46,743.75 = 21,290.22 : x
  2. Step 2: Convert to fraction form
    31,180.32/46,743.75 = 21,290.22/x
  3. Step 3: Cross multiply
    31,180.32x = 46,743.75 × 21,290.22
  4. Step 4: Simplify right side
    31,180.32x = 995,184,721.13
  5. Step 5: Solve for x
    x = 995,184,721.13/31,180.32
  6. Step 6: Final answer
    x = 31,917.08

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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.