Home / 39,669.28-54,735.96-25,520.20

Finding the Fourth Proportional to 39,669.28, 54,735.96 and 25,520.20

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Solution

The fourth proportional to 39,669.28, 54,735.96 and 25,520.20 is: 35,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.28 : 54,735.96 = 25,520.20 : x
  2. Step 2: Convert to fraction form
    39,669.28/54,735.96 = 25,520.20/x
  3. Step 3: Cross multiply
    39,669.28x = 54,735.96 × 25,520.20
  4. Step 4: Simplify right side
    39,669.28x = 1,396,872,646.39
  5. Step 5: Solve for x
    x = 1,396,872,646.39/39,669.28
  6. Step 6: Final answer
    x = 35,212.96

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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.