Home / 31,692.40-43,733.52-18,599.20

Finding the Fourth Proportional to 31,692.40, 43,733.52 and 18,599.20

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Solution

The fourth proportional to 31,692.40, 43,733.52 and 18,599.20 is: 25,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.40 : 43,733.52 = 18,599.20 : x
  2. Step 2: Convert to fraction form
    31,692.40/43,733.52 = 18,599.20/x
  3. Step 3: Cross multiply
    31,692.40x = 43,733.52 × 18,599.20
  4. Step 4: Simplify right side
    31,692.40x = 813,408,485.18
  5. Step 5: Solve for x
    x = 813,408,485.18/31,692.40
  6. Step 6: Final answer
    x = 25,665.73

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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.