Home / 19,939.27-29,908.80-5,146.93

Finding the Fourth Proportional to 19,939.27, 29,908.80 and 5,146.93

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Solution

The fourth proportional to 19,939.27, 29,908.80 and 5,146.93 is: 7,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.27 : 29,908.80 = 5,146.93 : x
  2. Step 2: Convert to fraction form
    19,939.27/29,908.80 = 5,146.93/x
  3. Step 3: Cross multiply
    19,939.27x = 29,908.80 × 5,146.93
  4. Step 4: Simplify right side
    19,939.27x = 153,938,499.98
  5. Step 5: Solve for x
    x = 153,938,499.98/19,939.27
  6. Step 6: Final answer
    x = 7,720.37

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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.