Home / 39,893.10-59,857.28-21,168.57

Finding the Fourth Proportional to 39,893.10, 59,857.28 and 21,168.57

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Solution

The fourth proportional to 39,893.10, 59,857.28 and 21,168.57 is: 31,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.10 : 59,857.28 = 21,168.57 : x
  2. Step 2: Convert to fraction form
    39,893.10/59,857.28 = 21,168.57/x
  3. Step 3: Cross multiply
    39,893.10x = 59,857.28 × 21,168.57
  4. Step 4: Simplify right side
    39,893.10x = 1,267,092,915.85
  5. Step 5: Solve for x
    x = 1,267,092,915.85/39,893.10
  6. Step 6: Final answer
    x = 31,762.21

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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.