Home / 19,488.83-29,221.55-8,945.66

Finding the Fourth Proportional to 19,488.83, 29,221.55 and 8,945.66

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Solution

The fourth proportional to 19,488.83, 29,221.55 and 8,945.66 is: 13,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.83 : 29,221.55 = 8,945.66 : x
  2. Step 2: Convert to fraction form
    19,488.83/29,221.55 = 8,945.66/x
  3. Step 3: Cross multiply
    19,488.83x = 29,221.55 × 8,945.66
  4. Step 4: Simplify right side
    19,488.83x = 261,405,860.14
  5. Step 5: Solve for x
    x = 261,405,860.14/19,488.83
  6. Step 6: Final answer
    x = 13,413.12

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1.5x scale

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.