Home / 19,957-29,935.38-5,165.86

Finding the Fourth Proportional to 19,957, 29,935.38 and 5,165.86

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Solution

The fourth proportional to 19,957, 29,935.38 and 5,165.86 is: 7,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957 : 29,935.38 = 5,165.86 : x
  2. Step 2: Convert to fraction form
    19,957/29,935.38 = 5,165.86/x
  3. Step 3: Cross multiply
    19,957x = 29,935.38 × 5,165.86
  4. Step 4: Simplify right side
    19,957x = 154,641,982.13
  5. Step 5: Solve for x
    x = 154,641,982.13/19,957
  6. Step 6: Final answer
    x = 7,748.76

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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.