Home / 21,888-32,849.92-15,327.36

Finding the Fourth Proportional to 21,888, 32,849.92 and 15,327.36

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Solution

The fourth proportional to 21,888, 32,849.92 and 15,327.36 is: 23,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888 : 32,849.92 = 15,327.36 : x
  2. Step 2: Convert to fraction form
    21,888/32,849.92 = 15,327.36/x
  3. Step 3: Cross multiply
    21,888x = 32,849.92 × 15,327.36
  4. Step 4: Simplify right side
    21,888x = 503,502,549.81
  5. Step 5: Solve for x
    x = 503,502,549.81/21,888
  6. Step 6: Final answer
    x = 23,003.59

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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.