Home / 26,742.66-36,936.11-21,383.60

Finding the Fourth Proportional to 26,742.66, 36,936.11 and 21,383.60

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Solution

The fourth proportional to 26,742.66, 36,936.11 and 21,383.60 is: 29,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,742.66 : 36,936.11 = 21,383.60 : x
  2. Step 2: Convert to fraction form
    26,742.66/36,936.11 = 21,383.60/x
  3. Step 3: Cross multiply
    26,742.66x = 36,936.11 × 21,383.60
  4. Step 4: Simplify right side
    26,742.66x = 789,827,147.60
  5. Step 5: Solve for x
    x = 789,827,147.60/26,742.66
  6. Step 6: Final answer
    x = 29,534.35

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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.