Home / 20,467.86-30,701.79-13,540.74

Finding the Fourth Proportional to 20,467.86, 30,701.79 and 13,540.74

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Solution

The fourth proportional to 20,467.86, 30,701.79 and 13,540.74 is: 20,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.86 : 30,701.79 = 13,540.74 : x
  2. Step 2: Convert to fraction form
    20,467.86/30,701.79 = 13,540.74/x
  3. Step 3: Cross multiply
    20,467.86x = 30,701.79 × 13,540.74
  4. Step 4: Simplify right side
    20,467.86x = 415,724,955.92
  5. Step 5: Solve for x
    x = 415,724,955.92/20,467.86
  6. Step 6: Final answer
    x = 20,311.11

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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.