Home / 25,667.28-38,508.48-8,136.72

Finding the Fourth Proportional to 25,667.28, 38,508.48 and 8,136.72

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Solution

The fourth proportional to 25,667.28, 38,508.48 and 8,136.72 is: 12,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.28 : 38,508.48 = 8,136.72 : x
  2. Step 2: Convert to fraction form
    25,667.28/38,508.48 = 8,136.72/x
  3. Step 3: Cross multiply
    25,667.28x = 38,508.48 × 8,136.72
  4. Step 4: Simplify right side
    25,667.28x = 313,332,719.39
  5. Step 5: Solve for x
    x = 313,332,719.39/25,667.28
  6. Step 6: Final answer
    x = 12,207.48

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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.