Home / 25,855.47-38,770.90-11,811.34

Finding the Fourth Proportional to 25,855.47, 38,770.90 and 11,811.34

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Solution

The fourth proportional to 25,855.47, 38,770.90 and 11,811.34 is: 17,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,855.47 : 38,770.90 = 11,811.34 : x
  2. Step 2: Convert to fraction form
    25,855.47/38,770.90 = 11,811.34/x
  3. Step 3: Cross multiply
    25,855.47x = 38,770.90 × 11,811.34
  4. Step 4: Simplify right side
    25,855.47x = 457,936,156.33
  5. Step 5: Solve for x
    x = 457,936,156.33/25,855.47
  6. Step 6: Final answer
    x = 17,711.39

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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.