Home / 31,745.95-43,810.83-18,135.18

Finding the Fourth Proportional to 31,745.95, 43,810.83 and 18,135.18

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Solution

The fourth proportional to 31,745.95, 43,810.83 and 18,135.18 is: 25,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,745.95 : 43,810.83 = 18,135.18 : x
  2. Step 2: Convert to fraction form
    31,745.95/43,810.83 = 18,135.18/x
  3. Step 3: Cross multiply
    31,745.95x = 43,810.83 × 18,135.18
  4. Step 4: Simplify right side
    31,745.95x = 794,517,288.00
  5. Step 5: Solve for x
    x = 794,517,288.00/31,745.95
  6. Step 6: Final answer
    x = 25,027.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.