Home / 21,269.90-29,352.30-11,838.26

Finding the Fourth Proportional to 21,269.90, 29,352.30 and 11,838.26

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Solution

The fourth proportional to 21,269.90, 29,352.30 and 11,838.26 is: 16,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.90 : 29,352.30 = 11,838.26 : x
  2. Step 2: Convert to fraction form
    21,269.90/29,352.30 = 11,838.26/x
  3. Step 3: Cross multiply
    21,269.90x = 29,352.30 × 11,838.26
  4. Step 4: Simplify right side
    21,269.90x = 347,480,159.00
  5. Step 5: Solve for x
    x = 347,480,159.00/21,269.90
  6. Step 6: Final answer
    x = 16,336.71

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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.