Home / 31,044.87-42,849.99-19,719.81

Finding the Fourth Proportional to 31,044.87, 42,849.99 and 19,719.81

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Solution

The fourth proportional to 31,044.87, 42,849.99 and 19,719.81 is: 27,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,044.87 : 42,849.99 = 19,719.81 : x
  2. Step 2: Convert to fraction form
    31,044.87/42,849.99 = 19,719.81/x
  3. Step 3: Cross multiply
    31,044.87x = 42,849.99 × 19,719.81
  4. Step 4: Simplify right side
    31,044.87x = 844,993,661.30
  5. Step 5: Solve for x
    x = 844,993,661.30/31,044.87
  6. Step 6: Final answer
    x = 27,218.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.