Home / 21,159.44-31,716.34-9,302.68

Finding the Fourth Proportional to 21,159.44, 31,716.34 and 9,302.68

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Solution

The fourth proportional to 21,159.44, 31,716.34 and 9,302.68 is: 13,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.44 : 31,716.34 = 9,302.68 : x
  2. Step 2: Convert to fraction form
    21,159.44/31,716.34 = 9,302.68/x
  3. Step 3: Cross multiply
    21,159.44x = 31,716.34 × 9,302.68
  4. Step 4: Simplify right side
    21,159.44x = 295,046,961.79
  5. Step 5: Solve for x
    x = 295,046,961.79/21,159.44
  6. Step 6: Final answer
    x = 13,943.99

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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.