Home / 21,416.66-29,564.26-16,112.78

Finding the Fourth Proportional to 21,416.66, 29,564.26 and 16,112.78

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Solution

The fourth proportional to 21,416.66, 29,564.26 and 16,112.78 is: 22,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.66 : 29,564.26 = 16,112.78 : x
  2. Step 2: Convert to fraction form
    21,416.66/29,564.26 = 16,112.78/x
  3. Step 3: Cross multiply
    21,416.66x = 29,564.26 × 16,112.78
  4. Step 4: Simplify right side
    21,416.66x = 476,362,262.77
  5. Step 5: Solve for x
    x = 476,362,262.77/21,416.66
  6. Step 6: Final answer
    x = 22,242.61

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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.