Home / 15,540.30-23,310.45-13,110.30

Finding the Fourth Proportional to 15,540.30, 23,310.45 and 13,110.30

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Solution

The fourth proportional to 15,540.30, 23,310.45 and 13,110.30 is: 19,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.30 : 23,310.45 = 13,110.30 : x
  2. Step 2: Convert to fraction form
    15,540.30/23,310.45 = 13,110.30/x
  3. Step 3: Cross multiply
    15,540.30x = 23,310.45 × 13,110.30
  4. Step 4: Simplify right side
    15,540.30x = 305,606,992.64
  5. Step 5: Solve for x
    x = 305,606,992.64/15,540.30
  6. Step 6: Final answer
    x = 19,665.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.