Home / 20,692.92-31,039.38-5,110.84

Finding the Fourth Proportional to 20,692.92, 31,039.38 and 5,110.84

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Solution

The fourth proportional to 20,692.92, 31,039.38 and 5,110.84 is: 7,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.92 : 31,039.38 = 5,110.84 : x
  2. Step 2: Convert to fraction form
    20,692.92/31,039.38 = 5,110.84/x
  3. Step 3: Cross multiply
    20,692.92x = 31,039.38 × 5,110.84
  4. Step 4: Simplify right side
    20,692.92x = 158,637,304.88
  5. Step 5: Solve for x
    x = 158,637,304.88/20,692.92
  6. Step 6: Final answer
    x = 7,666.26

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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.