Home / 40,365.25-55,640.05-31,853.57

Finding the Fourth Proportional to 40,365.25, 55,640.05 and 31,853.57

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Solution

The fourth proportional to 40,365.25, 55,640.05 and 31,853.57 is: 43,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,365.25 : 55,640.05 = 31,853.57 : x
  2. Step 2: Convert to fraction form
    40,365.25/55,640.05 = 31,853.57/x
  3. Step 3: Cross multiply
    40,365.25x = 55,640.05 × 31,853.57
  4. Step 4: Simplify right side
    40,365.25x = 1,772,333,869.64
  5. Step 5: Solve for x
    x = 1,772,333,869.64/40,365.25
  6. Step 6: Final answer
    x = 43,907.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.