Home / 30,260.72-45,390.69-13,608.98

Finding the Fourth Proportional to 30,260.72, 45,390.69 and 13,608.98

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Solution

The fourth proportional to 30,260.72, 45,390.69 and 13,608.98 is: 20,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.72 : 45,390.69 = 13,608.98 : x
  2. Step 2: Convert to fraction form
    30,260.72/45,390.69 = 13,608.98/x
  3. Step 3: Cross multiply
    30,260.72x = 45,390.69 × 13,608.98
  4. Step 4: Simplify right side
    30,260.72x = 617,720,992.40
  5. Step 5: Solve for x
    x = 617,720,992.40/30,260.72
  6. Step 6: Final answer
    x = 20,413.29

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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.