Home / 21,826.11-30,119.23-13,342.44

Finding the Fourth Proportional to 21,826.11, 30,119.23 and 13,342.44

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Solution

The fourth proportional to 21,826.11, 30,119.23 and 13,342.44 is: 18,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.11 : 30,119.23 = 13,342.44 : x
  2. Step 2: Convert to fraction form
    21,826.11/30,119.23 = 13,342.44/x
  3. Step 3: Cross multiply
    21,826.11x = 30,119.23 × 13,342.44
  4. Step 4: Simplify right side
    21,826.11x = 401,864,019.12
  5. Step 5: Solve for x
    x = 401,864,019.12/21,826.11
  6. Step 6: Final answer
    x = 18,412.08

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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.