Home / 19,903.29-29,855.99-5,112.32

Finding the Fourth Proportional to 19,903.29, 29,855.99 and 5,112.32

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Solution

The fourth proportional to 19,903.29, 29,855.99 and 5,112.32 is: 7,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.29 : 29,855.99 = 5,112.32 : x
  2. Step 2: Convert to fraction form
    19,903.29/29,855.99 = 5,112.32/x
  3. Step 3: Cross multiply
    19,903.29x = 29,855.99 × 5,112.32
  4. Step 4: Simplify right side
    19,903.29x = 152,633,238.30
  5. Step 5: Solve for x
    x = 152,633,238.30/19,903.29
  6. Step 6: Final answer
    x = 7,668.75

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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.