Home / 39,662.54-54,734.30-21,757.58

Finding the Fourth Proportional to 39,662.54, 54,734.30 and 21,757.58

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Solution

The fourth proportional to 39,662.54, 54,734.30 and 21,757.58 is: 30,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.54 : 54,734.30 = 21,757.58 : x
  2. Step 2: Convert to fraction form
    39,662.54/54,734.30 = 21,757.58/x
  3. Step 3: Cross multiply
    39,662.54x = 54,734.30 × 21,757.58
  4. Step 4: Simplify right side
    39,662.54x = 1,190,885,528.53
  5. Step 5: Solve for x
    x = 1,190,885,528.53/39,662.54
  6. Step 6: Final answer
    x = 30,025.45

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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.