Home / 30,379.88-45,590.06-11,675.36

Finding the Fourth Proportional to 30,379.88, 45,590.06 and 11,675.36

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Solution

The fourth proportional to 30,379.88, 45,590.06 and 11,675.36 is: 17,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.88 : 45,590.06 = 11,675.36 : x
  2. Step 2: Convert to fraction form
    30,379.88/45,590.06 = 11,675.36/x
  3. Step 3: Cross multiply
    30,379.88x = 45,590.06 × 11,675.36
  4. Step 4: Simplify right side
    30,379.88x = 532,280,164.16
  5. Step 5: Solve for x
    x = 532,280,164.16/30,379.88
  6. Step 6: Final answer
    x = 17,520.81

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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.