Home / 31,692.08-43,739.74-18,260.78

Finding the Fourth Proportional to 31,692.08, 43,739.74 and 18,260.78

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Solution

The fourth proportional to 31,692.08, 43,739.74 and 18,260.78 is: 25,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.08 : 43,739.74 = 18,260.78 : x
  2. Step 2: Convert to fraction form
    31,692.08/43,739.74 = 18,260.78/x
  3. Step 3: Cross multiply
    31,692.08x = 43,739.74 × 18,260.78
  4. Step 4: Simplify right side
    31,692.08x = 798,721,769.40
  5. Step 5: Solve for x
    x = 798,721,769.40/31,692.08
  6. Step 6: Final answer
    x = 25,202.57

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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.