Home / 25,982.24-38,924.40-12,819.20

Finding the Fourth Proportional to 25,982.24, 38,924.40 and 12,819.20

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Solution

The fourth proportional to 25,982.24, 38,924.40 and 12,819.20 is: 19,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.24 : 38,924.40 = 12,819.20 : x
  2. Step 2: Convert to fraction form
    25,982.24/38,924.40 = 12,819.20/x
  3. Step 3: Cross multiply
    25,982.24x = 38,924.40 × 12,819.20
  4. Step 4: Simplify right side
    25,982.24x = 498,979,668.48
  5. Step 5: Solve for x
    x = 498,979,668.48/25,982.24
  6. Step 6: Final answer
    x = 19,204.64

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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.