Home / 20,187.93-27,857.02-11,690.22

Finding the Fourth Proportional to 20,187.93, 27,857.02 and 11,690.22

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Solution

The fourth proportional to 20,187.93, 27,857.02 and 11,690.22 is: 16,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.93 : 27,857.02 = 11,690.22 : x
  2. Step 2: Convert to fraction form
    20,187.93/27,857.02 = 11,690.22/x
  3. Step 3: Cross multiply
    20,187.93x = 27,857.02 × 11,690.22
  4. Step 4: Simplify right side
    20,187.93x = 325,654,692.34
  5. Step 5: Solve for x
    x = 325,654,692.34/20,187.93
  6. Step 6: Final answer
    x = 16,131.16

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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.