Home / 18,441.79-25,451.82-10,485.21

Finding the Fourth Proportional to 18,441.79, 25,451.82 and 10,485.21

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Solution

The fourth proportional to 18,441.79, 25,451.82 and 10,485.21 is: 14,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.79 : 25,451.82 = 10,485.21 : x
  2. Step 2: Convert to fraction form
    18,441.79/25,451.82 = 10,485.21/x
  3. Step 3: Cross multiply
    18,441.79x = 25,451.82 × 10,485.21
  4. Step 4: Simplify right side
    18,441.79x = 266,867,677.58
  5. Step 5: Solve for x
    x = 266,867,677.58/18,441.79
  6. Step 6: Final answer
    x = 14,470.81

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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.