Home / 25,388.48-38,086.36-7,859.68

Finding the Fourth Proportional to 25,388.48, 38,086.36 and 7,859.68

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Solution

The fourth proportional to 25,388.48, 38,086.36 and 7,859.68 is: 11,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.48 : 38,086.36 = 7,859.68 : x
  2. Step 2: Convert to fraction form
    25,388.48/38,086.36 = 7,859.68/x
  3. Step 3: Cross multiply
    25,388.48x = 38,086.36 × 7,859.68
  4. Step 4: Simplify right side
    25,388.48x = 299,346,601.96
  5. Step 5: Solve for x
    x = 299,346,601.96/25,388.48
  6. Step 6: Final answer
    x = 11,790.65

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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.