Home / 21,186.26-29,228.70-12,232.04

Finding the Fourth Proportional to 21,186.26, 29,228.70 and 12,232.04

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Solution

The fourth proportional to 21,186.26, 29,228.70 and 12,232.04 is: 16,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.26 : 29,228.70 = 12,232.04 : x
  2. Step 2: Convert to fraction form
    21,186.26/29,228.70 = 12,232.04/x
  3. Step 3: Cross multiply
    21,186.26x = 29,228.70 × 12,232.04
  4. Step 4: Simplify right side
    21,186.26x = 357,526,481.40
  5. Step 5: Solve for x
    x = 357,526,481.40/21,186.26
  6. Step 6: Final answer
    x = 16,875.39

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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.