Home / 20,683.66-28,543.32-11,252.26

Finding the Fourth Proportional to 20,683.66, 28,543.32 and 11,252.26

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Solution

The fourth proportional to 20,683.66, 28,543.32 and 11,252.26 is: 15,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.66 : 28,543.32 = 11,252.26 : x
  2. Step 2: Convert to fraction form
    20,683.66/28,543.32 = 11,252.26/x
  3. Step 3: Cross multiply
    20,683.66x = 28,543.32 × 11,252.26
  4. Step 4: Simplify right side
    20,683.66x = 321,176,857.90
  5. Step 5: Solve for x
    x = 321,176,857.90/20,683.66
  6. Step 6: Final answer
    x = 15,528.05

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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.