Home / 20,483.12-30,719.82-5,692.52

Finding the Fourth Proportional to 20,483.12, 30,719.82 and 5,692.52

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Solution

The fourth proportional to 20,483.12, 30,719.82 and 5,692.52 is: 8,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.12 : 30,719.82 = 5,692.52 : x
  2. Step 2: Convert to fraction form
    20,483.12/30,719.82 = 5,692.52/x
  3. Step 3: Cross multiply
    20,483.12x = 30,719.82 × 5,692.52
  4. Step 4: Simplify right side
    20,483.12x = 174,873,189.75
  5. Step 5: Solve for x
    x = 174,873,189.75/20,483.12
  6. Step 6: Final answer
    x = 8,537.43

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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.