Home / 31,692.64-47,537.04-8,318.56

Finding the Fourth Proportional to 31,692.64, 47,537.04 and 8,318.56

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Solution

The fourth proportional to 31,692.64, 47,537.04 and 8,318.56 is: 12,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.64 : 47,537.04 = 8,318.56 : x
  2. Step 2: Convert to fraction form
    31,692.64/47,537.04 = 8,318.56/x
  3. Step 3: Cross multiply
    31,692.64x = 47,537.04 × 8,318.56
  4. Step 4: Simplify right side
    31,692.64x = 395,439,719.46
  5. Step 5: Solve for x
    x = 395,439,719.46/31,692.64
  6. Step 6: Final answer
    x = 12,477.34

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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.