Home / 29,128.57-43,692.85-12,477.81

Finding the Fourth Proportional to 29,128.57, 43,692.85 and 12,477.81

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Solution

The fourth proportional to 29,128.57, 43,692.85 and 12,477.81 is: 18,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.57 : 43,692.85 = 12,477.81 : x
  2. Step 2: Convert to fraction form
    29,128.57/43,692.85 = 12,477.81/x
  3. Step 3: Cross multiply
    29,128.57x = 43,692.85 × 12,477.81
  4. Step 4: Simplify right side
    29,128.57x = 545,191,080.66
  5. Step 5: Solve for x
    x = 545,191,080.66/29,128.57
  6. Step 6: Final answer
    x = 18,716.71

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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.