Home / 39,832.54-54,969.87-21,928.12

Finding the Fourth Proportional to 39,832.54, 54,969.87 and 21,928.12

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Solution

The fourth proportional to 39,832.54, 54,969.87 and 21,928.12 is: 30,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,832.54 : 54,969.87 = 21,928.12 : x
  2. Step 2: Convert to fraction form
    39,832.54/54,969.87 = 21,928.12/x
  3. Step 3: Cross multiply
    39,832.54x = 54,969.87 × 21,928.12
  4. Step 4: Simplify right side
    39,832.54x = 1,205,385,905.74
  5. Step 5: Solve for x
    x = 1,205,385,905.74/39,832.54
  6. Step 6: Final answer
    x = 30,261.34

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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.