Home / 40,261.44-55,542-30,813.60

Finding the Fourth Proportional to 40,261.44, 55,542 and 30,813.60

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Solution

The fourth proportional to 40,261.44, 55,542 and 30,813.60 is: 42,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,261.44 : 55,542 = 30,813.60 : x
  2. Step 2: Convert to fraction form
    40,261.44/55,542 = 30,813.60/x
  3. Step 3: Cross multiply
    40,261.44x = 55,542 × 30,813.60
  4. Step 4: Simplify right side
    40,261.44x = 1,711,448,971.20
  5. Step 5: Solve for x
    x = 1,711,448,971.20/40,261.44
  6. Step 6: Final answer
    x = 42,508.39

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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.