Home / 20,574.22-28,392.97-12,611.86

Finding the Fourth Proportional to 20,574.22, 28,392.97 and 12,611.86

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Solution

The fourth proportional to 20,574.22, 28,392.97 and 12,611.86 is: 17,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.22 : 28,392.97 = 12,611.86 : x
  2. Step 2: Convert to fraction form
    20,574.22/28,392.97 = 12,611.86/x
  3. Step 3: Cross multiply
    20,574.22x = 28,392.97 × 12,611.86
  4. Step 4: Simplify right side
    20,574.22x = 358,088,162.62
  5. Step 5: Solve for x
    x = 358,088,162.62/20,574.22
  6. Step 6: Final answer
    x = 17,404.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.