Home / 13,682.03-20,379.25-13,042.13

Finding the Fourth Proportional to 13,682.03, 20,379.25 and 13,042.13

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Solution

The fourth proportional to 13,682.03, 20,379.25 and 13,042.13 is: 19,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.03 : 20,379.25 = 13,042.13 : x
  2. Step 2: Convert to fraction form
    13,682.03/20,379.25 = 13,042.13/x
  3. Step 3: Cross multiply
    13,682.03x = 20,379.25 × 13,042.13
  4. Step 4: Simplify right side
    13,682.03x = 265,788,742.21
  5. Step 5: Solve for x
    x = 265,788,742.21/13,682.03
  6. Step 6: Final answer
    x = 19,426.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.