Home / 21,029.63-31,544.44-5,447.25

Finding the Fourth Proportional to 21,029.63, 31,544.44 and 5,447.25

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Solution

The fourth proportional to 21,029.63, 31,544.44 and 5,447.25 is: 8,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.63 : 31,544.44 = 5,447.25 : x
  2. Step 2: Convert to fraction form
    21,029.63/31,544.44 = 5,447.25/x
  3. Step 3: Cross multiply
    21,029.63x = 31,544.44 × 5,447.25
  4. Step 4: Simplify right side
    21,029.63x = 171,830,437.17
  5. Step 5: Solve for x
    x = 171,830,437.17/21,029.63
  6. Step 6: Final answer
    x = 8,170.88

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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.