Home / 19,943.63-29,913.12-5,151.38

Finding the Fourth Proportional to 19,943.63, 29,913.12 and 5,151.38

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Solution

The fourth proportional to 19,943.63, 29,913.12 and 5,151.38 is: 7,726.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.63 : 29,913.12 = 5,151.38 : x
  2. Step 2: Convert to fraction form
    19,943.63/29,913.12 = 5,151.38/x
  3. Step 3: Cross multiply
    19,943.63x = 29,913.12 × 5,151.38
  4. Step 4: Simplify right side
    19,943.63x = 154,093,698.54
  5. Step 5: Solve for x
    x = 154,093,698.54/19,943.63
  6. Step 6: Final answer
    x = 7,726.46

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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.