Home / 20,667.93-28,520.82-11,714.91

Finding the Fourth Proportional to 20,667.93, 28,520.82 and 11,714.91

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Solution

The fourth proportional to 20,667.93, 28,520.82 and 11,714.91 is: 16,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.93 : 28,520.82 = 11,714.91 : x
  2. Step 2: Convert to fraction form
    20,667.93/28,520.82 = 11,714.91/x
  3. Step 3: Cross multiply
    20,667.93x = 28,520.82 × 11,714.91
  4. Step 4: Simplify right side
    20,667.93x = 334,118,839.43
  5. Step 5: Solve for x
    x = 334,118,839.43/20,667.93
  6. Step 6: Final answer
    x = 16,166.05

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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.