Home / 19,540.21-29,226.58-18,122.08

Finding the Fourth Proportional to 19,540.21, 29,226.58 and 18,122.08

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Solution

The fourth proportional to 19,540.21, 29,226.58 and 18,122.08 is: 27,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.21 : 29,226.58 = 18,122.08 : x
  2. Step 2: Convert to fraction form
    19,540.21/29,226.58 = 18,122.08/x
  3. Step 3: Cross multiply
    19,540.21x = 29,226.58 × 18,122.08
  4. Step 4: Simplify right side
    19,540.21x = 529,646,420.89
  5. Step 5: Solve for x
    x = 529,646,420.89/19,540.21
  6. Step 6: Final answer
    x = 27,105.46

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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.