Home / 40,692.56-61,015.32-12,605.12

Finding the Fourth Proportional to 40,692.56, 61,015.32 and 12,605.12

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Solution

The fourth proportional to 40,692.56, 61,015.32 and 12,605.12 is: 18,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,692.56 : 61,015.32 = 12,605.12 : x
  2. Step 2: Convert to fraction form
    40,692.56/61,015.32 = 12,605.12/x
  3. Step 3: Cross multiply
    40,692.56x = 61,015.32 × 12,605.12
  4. Step 4: Simplify right side
    40,692.56x = 769,105,430.44
  5. Step 5: Solve for x
    x = 769,105,430.44/40,692.56
  6. Step 6: Final answer
    x = 18,900.39

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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.