Home / 30,413.10-45,563.76-17,939.91

Finding the Fourth Proportional to 30,413.10, 45,563.76 and 17,939.91

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Solution

The fourth proportional to 30,413.10, 45,563.76 and 17,939.91 is: 26,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.10 : 45,563.76 = 17,939.91 : x
  2. Step 2: Convert to fraction form
    30,413.10/45,563.76 = 17,939.91/x
  3. Step 3: Cross multiply
    30,413.10x = 45,563.76 × 17,939.91
  4. Step 4: Simplify right side
    30,413.10x = 817,409,753.66
  5. Step 5: Solve for x
    x = 817,409,753.66/30,413.10
  6. Step 6: Final answer
    x = 26,876.90

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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.