Home / 19,814.07-29,720.81-4,821.33

Finding the Fourth Proportional to 19,814.07, 29,720.81 and 4,821.33

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Solution

The fourth proportional to 19,814.07, 29,720.81 and 4,821.33 is: 7,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.07 : 29,720.81 = 4,821.33 : x
  2. Step 2: Convert to fraction form
    19,814.07/29,720.81 = 4,821.33/x
  3. Step 3: Cross multiply
    19,814.07x = 29,720.81 × 4,821.33
  4. Step 4: Simplify right side
    19,814.07x = 143,293,832.88
  5. Step 5: Solve for x
    x = 143,293,832.88/19,814.07
  6. Step 6: Final answer
    x = 7,231.92

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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.