Home / 18,530.11-25,571.70-10,572.28

Finding the Fourth Proportional to 18,530.11, 25,571.70 and 10,572.28

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Solution

The fourth proportional to 18,530.11, 25,571.70 and 10,572.28 is: 14,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.11 : 25,571.70 = 10,572.28 : x
  2. Step 2: Convert to fraction form
    18,530.11/25,571.70 = 10,572.28/x
  3. Step 3: Cross multiply
    18,530.11x = 25,571.70 × 10,572.28
  4. Step 4: Simplify right side
    18,530.11x = 270,351,172.48
  5. Step 5: Solve for x
    x = 270,351,172.48/18,530.11
  6. Step 6: Final answer
    x = 14,589.83

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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.