Home / 21,044.24-31,569.60-7,190

Finding the Fourth Proportional to 21,044.24, 31,569.60 and 7,190

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Solution

The fourth proportional to 21,044.24, 31,569.60 and 7,190 is: 10,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.24 : 31,569.60 = 7,190 : x
  2. Step 2: Convert to fraction form
    21,044.24/31,569.60 = 7,190/x
  3. Step 3: Cross multiply
    21,044.24x = 31,569.60 × 7,190
  4. Step 4: Simplify right side
    21,044.24x = 226,985,424
  5. Step 5: Solve for x
    x = 226,985,424/21,044.24
  6. Step 6: Final answer
    x = 10,786.11

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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.