Home / 25,518.25-38,221.97-12,342.99

Finding the Fourth Proportional to 25,518.25, 38,221.97 and 12,342.99

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Solution

The fourth proportional to 25,518.25, 38,221.97 and 12,342.99 is: 18,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,518.25 : 38,221.97 = 12,342.99 : x
  2. Step 2: Convert to fraction form
    25,518.25/38,221.97 = 12,342.99/x
  3. Step 3: Cross multiply
    25,518.25x = 38,221.97 × 12,342.99
  4. Step 4: Simplify right side
    25,518.25x = 471,773,331.78
  5. Step 5: Solve for x
    x = 471,773,331.78/25,518.25
  6. Step 6: Final answer
    x = 18,487.69

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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.