Home / 20,525.59-30,780.82-7,374.43

Finding the Fourth Proportional to 20,525.59, 30,780.82 and 7,374.43

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Solution

The fourth proportional to 20,525.59, 30,780.82 and 7,374.43 is: 11,058.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.59 : 30,780.82 = 7,374.43 : x
  2. Step 2: Convert to fraction form
    20,525.59/30,780.82 = 7,374.43/x
  3. Step 3: Cross multiply
    20,525.59x = 30,780.82 × 7,374.43
  4. Step 4: Simplify right side
    20,525.59x = 226,990,811.66
  5. Step 5: Solve for x
    x = 226,990,811.66/20,525.59
  6. Step 6: Final answer
    x = 11,058.92

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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.