Home / 30,001.23-41,413.50-19,790.64

Finding the Fourth Proportional to 30,001.23, 41,413.50 and 19,790.64

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Solution

The fourth proportional to 30,001.23, 41,413.50 and 19,790.64 is: 27,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.23 : 41,413.50 = 19,790.64 : x
  2. Step 2: Convert to fraction form
    30,001.23/41,413.50 = 19,790.64/x
  3. Step 3: Cross multiply
    30,001.23x = 41,413.50 × 19,790.64
  4. Step 4: Simplify right side
    30,001.23x = 819,599,669.64
  5. Step 5: Solve for x
    x = 819,599,669.64/30,001.23
  6. Step 6: Final answer
    x = 27,318.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.