Home / 18,942.13-26,151.35-16,840.45

Finding the Fourth Proportional to 18,942.13, 26,151.35 and 16,840.45

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Solution

The fourth proportional to 18,942.13, 26,151.35 and 16,840.45 is: 23,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.13 : 26,151.35 = 16,840.45 : x
  2. Step 2: Convert to fraction form
    18,942.13/26,151.35 = 16,840.45/x
  3. Step 3: Cross multiply
    18,942.13x = 26,151.35 × 16,840.45
  4. Step 4: Simplify right side
    18,942.13x = 440,400,287.15
  5. Step 5: Solve for x
    x = 440,400,287.15/18,942.13
  6. Step 6: Final answer
    x = 23,249.78

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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.