Home / 20,572.11-30,808.96-19,538.75

Finding the Fourth Proportional to 20,572.11, 30,808.96 and 19,538.75

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Solution

The fourth proportional to 20,572.11, 30,808.96 and 19,538.75 is: 29,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.11 : 30,808.96 = 19,538.75 : x
  2. Step 2: Convert to fraction form
    20,572.11/30,808.96 = 19,538.75/x
  3. Step 3: Cross multiply
    20,572.11x = 30,808.96 × 19,538.75
  4. Step 4: Simplify right side
    20,572.11x = 601,968,595.38
  5. Step 5: Solve for x
    x = 601,968,595.38/20,572.11
  6. Step 6: Final answer
    x = 29,261.39

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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.