Home / 25,785.75-38,680.98-8,016.51

Finding the Fourth Proportional to 25,785.75, 38,680.98 and 8,016.51

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Solution

The fourth proportional to 25,785.75, 38,680.98 and 8,016.51 is: 12,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.75 : 38,680.98 = 8,016.51 : x
  2. Step 2: Convert to fraction form
    25,785.75/38,680.98 = 8,016.51/x
  3. Step 3: Cross multiply
    25,785.75x = 38,680.98 × 8,016.51
  4. Step 4: Simplify right side
    25,785.75x = 310,086,462.98
  5. Step 5: Solve for x
    x = 310,086,462.98/25,785.75
  6. Step 6: Final answer
    x = 12,025.50

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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.