Home / 25,351.85-38,015.08-7,819.40

Finding the Fourth Proportional to 25,351.85, 38,015.08 and 7,819.40

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Solution

The fourth proportional to 25,351.85, 38,015.08 and 7,819.40 is: 11,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,351.85 : 38,015.08 = 7,819.40 : x
  2. Step 2: Convert to fraction form
    25,351.85/38,015.08 = 7,819.40/x
  3. Step 3: Cross multiply
    25,351.85x = 38,015.08 × 7,819.40
  4. Step 4: Simplify right side
    25,351.85x = 297,255,116.55
  5. Step 5: Solve for x
    x = 297,255,116.55/25,351.85
  6. Step 6: Final answer
    x = 11,725.18

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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.