Home / 20,683.56-28,543.38-11,252.12

Finding the Fourth Proportional to 20,683.56, 28,543.38 and 11,252.12

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Solution

The fourth proportional to 20,683.56, 28,543.38 and 11,252.12 is: 15,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.56 : 28,543.38 = 11,252.12 : x
  2. Step 2: Convert to fraction form
    20,683.56/28,543.38 = 11,252.12/x
  3. Step 3: Cross multiply
    20,683.56x = 28,543.38 × 11,252.12
  4. Step 4: Simplify right side
    20,683.56x = 321,173,536.97
  5. Step 5: Solve for x
    x = 321,173,536.97/20,683.56
  6. Step 6: Final answer
    x = 15,527.96

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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.