Home / 25,460.40-38,181.48-8,815.96

Finding the Fourth Proportional to 25,460.40, 38,181.48 and 8,815.96

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Solution

The fourth proportional to 25,460.40, 38,181.48 and 8,815.96 is: 13,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,460.40 : 38,181.48 = 8,815.96 : x
  2. Step 2: Convert to fraction form
    25,460.40/38,181.48 = 8,815.96/x
  3. Step 3: Cross multiply
    25,460.40x = 38,181.48 × 8,815.96
  4. Step 4: Simplify right side
    25,460.40x = 336,606,400.42
  5. Step 5: Solve for x
    x = 336,606,400.42/25,460.40
  6. Step 6: Final answer
    x = 13,220.78

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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.