Home / 25,371.60-38,015.85-13,512.79

Finding the Fourth Proportional to 25,371.60, 38,015.85 and 13,512.79

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Solution

The fourth proportional to 25,371.60, 38,015.85 and 13,512.79 is: 20,247.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,371.60 : 38,015.85 = 13,512.79 : x
  2. Step 2: Convert to fraction form
    25,371.60/38,015.85 = 13,512.79/x
  3. Step 3: Cross multiply
    25,371.60x = 38,015.85 × 13,512.79
  4. Step 4: Simplify right side
    25,371.60x = 513,700,102.68
  5. Step 5: Solve for x
    x = 513,700,102.68/25,371.60
  6. Step 6: Final answer
    x = 20,247.05

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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.