Home / 19,540.46-26,975.13-13,091.20

Finding the Fourth Proportional to 19,540.46, 26,975.13 and 13,091.20

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Solution

The fourth proportional to 19,540.46, 26,975.13 and 13,091.20 is: 18,072.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.46 : 26,975.13 = 13,091.20 : x
  2. Step 2: Convert to fraction form
    19,540.46/26,975.13 = 13,091.20/x
  3. Step 3: Cross multiply
    19,540.46x = 26,975.13 × 13,091.20
  4. Step 4: Simplify right side
    19,540.46x = 353,136,922.02
  5. Step 5: Solve for x
    x = 353,136,922.02/19,540.46
  6. Step 6: Final answer
    x = 18,072.09

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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.