Home / 31,399.99-47,118.35-11,692.51

Finding the Fourth Proportional to 31,399.99, 47,118.35 and 11,692.51

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Solution

The fourth proportional to 31,399.99, 47,118.35 and 11,692.51 is: 17,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.99 : 47,118.35 = 11,692.51 : x
  2. Step 2: Convert to fraction form
    31,399.99/47,118.35 = 11,692.51/x
  3. Step 3: Cross multiply
    31,399.99x = 47,118.35 × 11,692.51
  4. Step 4: Simplify right side
    31,399.99x = 550,931,778.56
  5. Step 5: Solve for x
    x = 550,931,778.56/31,399.99
  6. Step 6: Final answer
    x = 17,545.60

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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.