Home / 21,223.65-31,805.29-15,633.03

Finding the Fourth Proportional to 21,223.65, 31,805.29 and 15,633.03

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Solution

The fourth proportional to 21,223.65, 31,805.29 and 15,633.03 is: 23,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.65 : 31,805.29 = 15,633.03 : x
  2. Step 2: Convert to fraction form
    21,223.65/31,805.29 = 15,633.03/x
  3. Step 3: Cross multiply
    21,223.65x = 31,805.29 × 15,633.03
  4. Step 4: Simplify right side
    21,223.65x = 497,213,052.73
  5. Step 5: Solve for x
    x = 497,213,052.73/21,223.65
  6. Step 6: Final answer
    x = 23,427.31

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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.