Home / 21,252.67-31,849.84-13,447.51

Finding the Fourth Proportional to 21,252.67, 31,849.84 and 13,447.51

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Solution

The fourth proportional to 21,252.67, 31,849.84 and 13,447.51 is: 20,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.67 : 31,849.84 = 13,447.51 : x
  2. Step 2: Convert to fraction form
    21,252.67/31,849.84 = 13,447.51/x
  3. Step 3: Cross multiply
    21,252.67x = 31,849.84 × 13,447.51
  4. Step 4: Simplify right side
    21,252.67x = 428,301,041.90
  5. Step 5: Solve for x
    x = 428,301,041.90/21,252.67
  6. Step 6: Final answer
    x = 20,152.81

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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.