Home / 18,739.42-25,859.46-13,443.10

Finding the Fourth Proportional to 18,739.42, 25,859.46 and 13,443.10

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Solution

The fourth proportional to 18,739.42, 25,859.46 and 13,443.10 is: 18,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.42 : 25,859.46 = 13,443.10 : x
  2. Step 2: Convert to fraction form
    18,739.42/25,859.46 = 13,443.10/x
  3. Step 3: Cross multiply
    18,739.42x = 25,859.46 × 13,443.10
  4. Step 4: Simplify right side
    18,739.42x = 347,631,306.73
  5. Step 5: Solve for x
    x = 347,631,306.73/18,739.42
  6. Step 6: Final answer
    x = 18,550.80

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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.