Home / 40,355.82-55,688.31-22,449.60

Finding the Fourth Proportional to 40,355.82, 55,688.31 and 22,449.60

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Solution

The fourth proportional to 40,355.82, 55,688.31 and 22,449.60 is: 30,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,355.82 : 55,688.31 = 22,449.60 : x
  2. Step 2: Convert to fraction form
    40,355.82/55,688.31 = 22,449.60/x
  3. Step 3: Cross multiply
    40,355.82x = 55,688.31 × 22,449.60
  4. Step 4: Simplify right side
    40,355.82x = 1,250,180,284.18
  5. Step 5: Solve for x
    x = 1,250,180,284.18/40,355.82
  6. Step 6: Final answer
    x = 30,978.93

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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.