Home / 15,604.20-21,424.91-15,198.12

Finding the Fourth Proportional to 15,604.20, 21,424.91 and 15,198.12

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Solution

The fourth proportional to 15,604.20, 21,424.91 and 15,198.12 is: 20,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.20 : 21,424.91 = 15,198.12 : x
  2. Step 2: Convert to fraction form
    15,604.20/21,424.91 = 15,198.12/x
  3. Step 3: Cross multiply
    15,604.20x = 21,424.91 × 15,198.12
  4. Step 4: Simplify right side
    15,604.20x = 325,618,277.18
  5. Step 5: Solve for x
    x = 325,618,277.18/15,604.20
  6. Step 6: Final answer
    x = 20,867.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.