Home / 25,820.04-38,731.81-8,288.80

Finding the Fourth Proportional to 25,820.04, 38,731.81 and 8,288.80

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Solution

The fourth proportional to 25,820.04, 38,731.81 and 8,288.80 is: 12,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.04 : 38,731.81 = 8,288.80 : x
  2. Step 2: Convert to fraction form
    25,820.04/38,731.81 = 8,288.80/x
  3. Step 3: Cross multiply
    25,820.04x = 38,731.81 × 8,288.80
  4. Step 4: Simplify right side
    25,820.04x = 321,040,226.73
  5. Step 5: Solve for x
    x = 321,040,226.73/25,820.04
  6. Step 6: Final answer
    x = 12,433.76

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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.