Home / 42,577.72-63,866.58-11,413.78

Finding the Fourth Proportional to 42,577.72, 63,866.58 and 11,413.78

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Solution

The fourth proportional to 42,577.72, 63,866.58 and 11,413.78 is: 17,120.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,577.72 : 63,866.58 = 11,413.78 : x
  2. Step 2: Convert to fraction form
    42,577.72/63,866.58 = 11,413.78/x
  3. Step 3: Cross multiply
    42,577.72x = 63,866.58 × 11,413.78
  4. Step 4: Simplify right side
    42,577.72x = 728,959,093.47
  5. Step 5: Solve for x
    x = 728,959,093.47/42,577.72
  6. Step 6: Final answer
    x = 17,120.67

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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.