Home / 20,677.27-28,534.94-12,714.79

Finding the Fourth Proportional to 20,677.27, 28,534.94 and 12,714.79

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Solution

The fourth proportional to 20,677.27, 28,534.94 and 12,714.79 is: 17,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.27 : 28,534.94 = 12,714.79 : x
  2. Step 2: Convert to fraction form
    20,677.27/28,534.94 = 12,714.79/x
  3. Step 3: Cross multiply
    20,677.27x = 28,534.94 × 12,714.79
  4. Step 4: Simplify right side
    20,677.27x = 362,815,769.76
  5. Step 5: Solve for x
    x = 362,815,769.76/20,677.27
  6. Step 6: Final answer
    x = 17,546.60

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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.