Home / 21,134.25-29,166.15-11,702.82

Finding the Fourth Proportional to 21,134.25, 29,166.15 and 11,702.82

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Solution

The fourth proportional to 21,134.25, 29,166.15 and 11,702.82 is: 16,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.25 : 29,166.15 = 11,702.82 : x
  2. Step 2: Convert to fraction form
    21,134.25/29,166.15 = 11,702.82/x
  3. Step 3: Cross multiply
    21,134.25x = 29,166.15 × 11,702.82
  4. Step 4: Simplify right side
    21,134.25x = 341,325,999.20
  5. Step 5: Solve for x
    x = 341,325,999.20/21,134.25
  6. Step 6: Final answer
    x = 16,150.37

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1.5x scale

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.