Home / 20,727.44-28,602.48-12,229.12

Finding the Fourth Proportional to 20,727.44, 28,602.48 and 12,229.12

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Solution

The fourth proportional to 20,727.44, 28,602.48 and 12,229.12 is: 16,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.44 : 28,602.48 = 12,229.12 : x
  2. Step 2: Convert to fraction form
    20,727.44/28,602.48 = 12,229.12/x
  3. Step 3: Cross multiply
    20,727.44x = 28,602.48 × 12,229.12
  4. Step 4: Simplify right side
    20,727.44x = 349,783,160.22
  5. Step 5: Solve for x
    x = 349,783,160.22/20,727.44
  6. Step 6: Final answer
    x = 16,875.37

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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.