Home / 19,782.20-29,673.30-4,992.26

Finding the Fourth Proportional to 19,782.20, 29,673.30 and 4,992.26

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Solution

The fourth proportional to 19,782.20, 29,673.30 and 4,992.26 is: 7,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.20 : 29,673.30 = 4,992.26 : x
  2. Step 2: Convert to fraction form
    19,782.20/29,673.30 = 4,992.26/x
  3. Step 3: Cross multiply
    19,782.20x = 29,673.30 × 4,992.26
  4. Step 4: Simplify right side
    19,782.20x = 148,136,828.66
  5. Step 5: Solve for x
    x = 148,136,828.66/19,782.20
  6. Step 6: Final answer
    x = 7,488.39

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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.