Home / 19,939.16-29,880.54-11,058.42

Finding the Fourth Proportional to 19,939.16, 29,880.54 and 11,058.42

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Solution

The fourth proportional to 19,939.16, 29,880.54 and 11,058.42 is: 16,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.16 : 29,880.54 = 11,058.42 : x
  2. Step 2: Convert to fraction form
    19,939.16/29,880.54 = 11,058.42/x
  3. Step 3: Cross multiply
    19,939.16x = 29,880.54 × 11,058.42
  4. Step 4: Simplify right side
    19,939.16x = 330,431,561.15
  5. Step 5: Solve for x
    x = 330,431,561.15/19,939.16
  6. Step 6: Final answer
    x = 16,571.99

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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.