Home / 31,692.51-47,535.17-8,320.77

Finding the Fourth Proportional to 31,692.51, 47,535.17 and 8,320.77

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Solution

The fourth proportional to 31,692.51, 47,535.17 and 8,320.77 is: 12,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.51 : 47,535.17 = 8,320.77 : x
  2. Step 2: Convert to fraction form
    31,692.51/47,535.17 = 8,320.77/x
  3. Step 3: Cross multiply
    31,692.51x = 47,535.17 × 8,320.77
  4. Step 4: Simplify right side
    31,692.51x = 395,529,174.88
  5. Step 5: Solve for x
    x = 395,529,174.88/31,692.51
  6. Step 6: Final answer
    x = 12,480.21

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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.