Home / 34,138.30-47,091.56-21,369.31

Finding the Fourth Proportional to 34,138.30, 47,091.56 and 21,369.31

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Solution

The fourth proportional to 34,138.30, 47,091.56 and 21,369.31 is: 29,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138.30 : 47,091.56 = 21,369.31 : x
  2. Step 2: Convert to fraction form
    34,138.30/47,091.56 = 21,369.31/x
  3. Step 3: Cross multiply
    34,138.30x = 47,091.56 × 21,369.31
  4. Step 4: Simplify right side
    34,138.30x = 1,006,314,144.02
  5. Step 5: Solve for x
    x = 1,006,314,144.02/34,138.30
  6. Step 6: Final answer
    x = 29,477.57

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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.