Home / 18,538.26-25,581.38-10,579.40

Finding the Fourth Proportional to 18,538.26, 25,581.38 and 10,579.40

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Solution

The fourth proportional to 18,538.26, 25,581.38 and 10,579.40 is: 14,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.26 : 25,581.38 = 10,579.40 : x
  2. Step 2: Convert to fraction form
    18,538.26/25,581.38 = 10,579.40/x
  3. Step 3: Cross multiply
    18,538.26x = 25,581.38 × 10,579.40
  4. Step 4: Simplify right side
    18,538.26x = 270,635,651.57
  5. Step 5: Solve for x
    x = 270,635,651.57/18,538.26
  6. Step 6: Final answer
    x = 14,598.76

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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.