Home / 19,402.29-29,072.97-13,490.66

Finding the Fourth Proportional to 19,402.29, 29,072.97 and 13,490.66

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Solution

The fourth proportional to 19,402.29, 29,072.97 and 13,490.66 is: 20,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,402.29 : 29,072.97 = 13,490.66 : x
  2. Step 2: Convert to fraction form
    19,402.29/29,072.97 = 13,490.66/x
  3. Step 3: Cross multiply
    19,402.29x = 29,072.97 × 13,490.66
  4. Step 4: Simplify right side
    19,402.29x = 392,213,408.10
  5. Step 5: Solve for x
    x = 392,213,408.10/19,402.29
  6. Step 6: Final answer
    x = 20,214.80

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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.