Home / 21,537.44-29,720-12,104.16

Finding the Fourth Proportional to 21,537.44, 29,720 and 12,104.16

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Solution

The fourth proportional to 21,537.44, 29,720 and 12,104.16 is: 16,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.44 : 29,720 = 12,104.16 : x
  2. Step 2: Convert to fraction form
    21,537.44/29,720 = 12,104.16/x
  3. Step 3: Cross multiply
    21,537.44x = 29,720 × 12,104.16
  4. Step 4: Simplify right side
    21,537.44x = 359,735,635.20
  5. Step 5: Solve for x
    x = 359,735,635.20/21,537.44
  6. Step 6: Final answer
    x = 16,702.80

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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.