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Finding the Fourth Proportional to 26,275.95, 39,420.20 and 8,745.93

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Solution

The fourth proportional to 26,275.95, 39,420.20 and 8,745.93 is: 13,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,275.95 : 39,420.20 = 8,745.93 : x
  2. Step 2: Convert to fraction form
    26,275.95/39,420.20 = 8,745.93/x
  3. Step 3: Cross multiply
    26,275.95x = 39,420.20 × 8,745.93
  4. Step 4: Simplify right side
    26,275.95x = 344,766,331.65
  5. Step 5: Solve for x
    x = 344,766,331.65/26,275.95
  6. Step 6: Final answer
    x = 13,120.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.