Home / 26,294.22-39,402.72-13,128.48

Finding the Fourth Proportional to 26,294.22, 39,402.72 and 13,128.48

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Solution

The fourth proportional to 26,294.22, 39,402.72 and 13,128.48 is: 19,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,294.22 : 39,402.72 = 13,128.48 : x
  2. Step 2: Convert to fraction form
    26,294.22/39,402.72 = 13,128.48/x
  3. Step 3: Cross multiply
    26,294.22x = 39,402.72 × 13,128.48
  4. Step 4: Simplify right side
    26,294.22x = 517,297,821.47
  5. Step 5: Solve for x
    x = 517,297,821.47/26,294.22
  6. Step 6: Final answer
    x = 19,673.44

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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.