Home / 20,853.06-28,766.46-14,136.42

Finding the Fourth Proportional to 20,853.06, 28,766.46 and 14,136.42

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Solution

The fourth proportional to 20,853.06, 28,766.46 and 14,136.42 is: 19,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.06 : 28,766.46 = 14,136.42 : x
  2. Step 2: Convert to fraction form
    20,853.06/28,766.46 = 14,136.42/x
  3. Step 3: Cross multiply
    20,853.06x = 28,766.46 × 14,136.42
  4. Step 4: Simplify right side
    20,853.06x = 406,654,760.47
  5. Step 5: Solve for x
    x = 406,654,760.47/20,853.06
  6. Step 6: Final answer
    x = 19,500.96

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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.