Home / 20,218.60-27,776.27-16,670.80

Finding the Fourth Proportional to 20,218.60, 27,776.27 and 16,670.80

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Solution

The fourth proportional to 20,218.60, 27,776.27 and 16,670.80 is: 22,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.60 : 27,776.27 = 16,670.80 : x
  2. Step 2: Convert to fraction form
    20,218.60/27,776.27 = 16,670.80/x
  3. Step 3: Cross multiply
    20,218.60x = 27,776.27 × 16,670.80
  4. Step 4: Simplify right side
    20,218.60x = 463,052,641.92
  5. Step 5: Solve for x
    x = 463,052,641.92/20,218.60
  6. Step 6: Final answer
    x = 22,902.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.