Home / 21,040.64-31,546.44-14,022.80

Finding the Fourth Proportional to 21,040.64, 31,546.44 and 14,022.80

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Solution

The fourth proportional to 21,040.64, 31,546.44 and 14,022.80 is: 21,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.64 : 31,546.44 = 14,022.80 : x
  2. Step 2: Convert to fraction form
    21,040.64/31,546.44 = 14,022.80/x
  3. Step 3: Cross multiply
    21,040.64x = 31,546.44 × 14,022.80
  4. Step 4: Simplify right side
    21,040.64x = 442,369,418.83
  5. Step 5: Solve for x
    x = 442,369,418.83/21,040.64
  6. Step 6: Final answer
    x = 21,024.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.