Home / 19,858.12-29,782.62-5,814.52

Finding the Fourth Proportional to 19,858.12, 29,782.62 and 5,814.52

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Solution

The fourth proportional to 19,858.12, 29,782.62 and 5,814.52 is: 8,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.12 : 29,782.62 = 5,814.52 : x
  2. Step 2: Convert to fraction form
    19,858.12/29,782.62 = 5,814.52/x
  3. Step 3: Cross multiply
    19,858.12x = 29,782.62 × 5,814.52
  4. Step 4: Simplify right side
    19,858.12x = 173,171,639.64
  5. Step 5: Solve for x
    x = 173,171,639.64/19,858.12
  6. Step 6: Final answer
    x = 8,720.44

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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.