Home / 21,182.25-31,823.01-19,985.37

Finding the Fourth Proportional to 21,182.25, 31,823.01 and 19,985.37

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Solution

The fourth proportional to 21,182.25, 31,823.01 and 19,985.37 is: 30,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.25 : 31,823.01 = 19,985.37 : x
  2. Step 2: Convert to fraction form
    21,182.25/31,823.01 = 19,985.37/x
  3. Step 3: Cross multiply
    21,182.25x = 31,823.01 × 19,985.37
  4. Step 4: Simplify right side
    21,182.25x = 635,994,629.36
  5. Step 5: Solve for x
    x = 635,994,629.36/21,182.25
  6. Step 6: Final answer
    x = 30,024.89

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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.