Home / 19,379.82-29,070.30-5,340.06

Finding the Fourth Proportional to 19,379.82, 29,070.30 and 5,340.06

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Solution

The fourth proportional to 19,379.82, 29,070.30 and 5,340.06 is: 8,010.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.82 : 29,070.30 = 5,340.06 : x
  2. Step 2: Convert to fraction form
    19,379.82/29,070.30 = 5,340.06/x
  3. Step 3: Cross multiply
    19,379.82x = 29,070.30 × 5,340.06
  4. Step 4: Simplify right side
    19,379.82x = 155,237,146.22
  5. Step 5: Solve for x
    x = 155,237,146.22/19,379.82
  6. Step 6: Final answer
    x = 8,010.25

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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.