Home / 21,224.45-29,290.56-11,665.15

Finding the Fourth Proportional to 21,224.45, 29,290.56 and 11,665.15

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Solution

The fourth proportional to 21,224.45, 29,290.56 and 11,665.15 is: 16,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.45 : 29,290.56 = 11,665.15 : x
  2. Step 2: Convert to fraction form
    21,224.45/29,290.56 = 11,665.15/x
  3. Step 3: Cross multiply
    21,224.45x = 29,290.56 × 11,665.15
  4. Step 4: Simplify right side
    21,224.45x = 341,678,775.98
  5. Step 5: Solve for x
    x = 341,678,775.98/21,224.45
  6. Step 6: Final answer
    x = 16,098.36

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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.