Home / 20,683.47-28,543.41-11,252.06

Finding the Fourth Proportional to 20,683.47, 28,543.41 and 11,252.06

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Solution

The fourth proportional to 20,683.47, 28,543.41 and 11,252.06 is: 15,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.47 : 28,543.41 = 11,252.06 : x
  2. Step 2: Convert to fraction form
    20,683.47/28,543.41 = 11,252.06/x
  3. Step 3: Cross multiply
    20,683.47x = 28,543.41 × 11,252.06
  4. Step 4: Simplify right side
    20,683.47x = 321,172,161.92
  5. Step 5: Solve for x
    x = 321,172,161.92/20,683.47
  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.