Home / 30,331.86-45,413.82-15,508.86

Finding the Fourth Proportional to 30,331.86, 45,413.82 and 15,508.86

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Solution

The fourth proportional to 30,331.86, 45,413.82 and 15,508.86 is: 23,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.86 : 45,413.82 = 15,508.86 : x
  2. Step 2: Convert to fraction form
    30,331.86/45,413.82 = 15,508.86/x
  3. Step 3: Cross multiply
    30,331.86x = 45,413.82 × 15,508.86
  4. Step 4: Simplify right side
    30,331.86x = 704,316,576.45
  5. Step 5: Solve for x
    x = 704,316,576.45/30,331.86
  6. Step 6: Final answer
    x = 23,220.36

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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.