Home / 20,714.06-28,587.40-12,760.94

Finding the Fourth Proportional to 20,714.06, 28,587.40 and 12,760.94

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Solution

The fourth proportional to 20,714.06, 28,587.40 and 12,760.94 is: 17,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.06 : 28,587.40 = 12,760.94 : x
  2. Step 2: Convert to fraction form
    20,714.06/28,587.40 = 12,760.94/x
  3. Step 3: Cross multiply
    20,714.06x = 28,587.40 × 12,760.94
  4. Step 4: Simplify right side
    20,714.06x = 364,802,096.16
  5. Step 5: Solve for x
    x = 364,802,096.16/20,714.06
  6. Step 6: Final answer
    x = 17,611.33

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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.