Home / 18,539.18-25,583.78-10,581.20

Finding the Fourth Proportional to 18,539.18, 25,583.78 and 10,581.20

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Solution

The fourth proportional to 18,539.18, 25,583.78 and 10,581.20 is: 14,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.18 : 25,583.78 = 10,581.20 : x
  2. Step 2: Convert to fraction form
    18,539.18/25,583.78 = 10,581.20/x
  3. Step 3: Cross multiply
    18,539.18x = 25,583.78 × 10,581.20
  4. Step 4: Simplify right side
    18,539.18x = 270,707,092.94
  5. Step 5: Solve for x
    x = 270,707,092.94/18,539.18
  6. Step 6: Final answer
    x = 14,601.89

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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.