Home / 25,743.60-38,557.08-20,162.16

Finding the Fourth Proportional to 25,743.60, 38,557.08 and 20,162.16

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Solution

The fourth proportional to 25,743.60, 38,557.08 and 20,162.16 is: 30,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.60 : 38,557.08 = 20,162.16 : x
  2. Step 2: Convert to fraction form
    25,743.60/38,557.08 = 20,162.16/x
  3. Step 3: Cross multiply
    25,743.60x = 38,557.08 × 20,162.16
  4. Step 4: Simplify right side
    25,743.60x = 777,394,016.09
  5. Step 5: Solve for x
    x = 777,394,016.09/25,743.60
  6. Step 6: Final answer
    x = 30,197.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.