Home / 15,766.24-21,599.66-15,175.36

Finding the Fourth Proportional to 15,766.24, 21,599.66 and 15,175.36

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Solution

The fourth proportional to 15,766.24, 21,599.66 and 15,175.36 is: 20,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.24 : 21,599.66 = 15,175.36 : x
  2. Step 2: Convert to fraction form
    15,766.24/21,599.66 = 15,175.36/x
  3. Step 3: Cross multiply
    15,766.24x = 21,599.66 × 15,175.36
  4. Step 4: Simplify right side
    15,766.24x = 327,782,616.38
  5. Step 5: Solve for x
    x = 327,782,616.38/15,766.24
  6. Step 6: Final answer
    x = 20,790.16

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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.