Home / 19,540.21-26,974.79-13,090.95

Finding the Fourth Proportional to 19,540.21, 26,974.79 and 13,090.95

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Solution

The fourth proportional to 19,540.21, 26,974.79 and 13,090.95 is: 18,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.21 : 26,974.79 = 13,090.95 : x
  2. Step 2: Convert to fraction form
    19,540.21/26,974.79 = 13,090.95/x
  3. Step 3: Cross multiply
    19,540.21x = 26,974.79 × 13,090.95
  4. Step 4: Simplify right side
    19,540.21x = 353,125,649.09
  5. Step 5: Solve for x
    x = 353,125,649.09/19,540.21
  6. Step 6: Final answer
    x = 18,071.74

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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.