Home / 25,815.84-38,727.36-8,291.04

Finding the Fourth Proportional to 25,815.84, 38,727.36 and 8,291.04

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Solution

The fourth proportional to 25,815.84, 38,727.36 and 8,291.04 is: 12,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.84 : 38,727.36 = 8,291.04 : x
  2. Step 2: Convert to fraction form
    25,815.84/38,727.36 = 8,291.04/x
  3. Step 3: Cross multiply
    25,815.84x = 38,727.36 × 8,291.04
  4. Step 4: Simplify right side
    25,815.84x = 321,090,090.85
  5. Step 5: Solve for x
    x = 321,090,090.85/25,815.84
  6. Step 6: Final answer
    x = 12,437.72

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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.