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Finding the Fourth Proportional to 39,395.70, 59,044.28 and 19,679.76

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Solution

The fourth proportional to 39,395.70, 59,044.28 and 19,679.76 is: 29,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.70 : 59,044.28 = 19,679.76 : x
  2. Step 2: Convert to fraction form
    39,395.70/59,044.28 = 19,679.76/x
  3. Step 3: Cross multiply
    39,395.70x = 59,044.28 × 19,679.76
  4. Step 4: Simplify right side
    39,395.70x = 1,161,977,161.37
  5. Step 5: Solve for x
    x = 1,161,977,161.37/39,395.70
  6. Step 6: Final answer
    x = 29,495.03

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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.