Home / 20,723.73-31,093.79-7,577.12

Finding the Fourth Proportional to 20,723.73, 31,093.79 and 7,577.12

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Solution

The fourth proportional to 20,723.73, 31,093.79 and 7,577.12 is: 11,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.73 : 31,093.79 = 7,577.12 : x
  2. Step 2: Convert to fraction form
    20,723.73/31,093.79 = 7,577.12/x
  3. Step 3: Cross multiply
    20,723.73x = 31,093.79 × 7,577.12
  4. Step 4: Simplify right side
    20,723.73x = 235,601,184.73
  5. Step 5: Solve for x
    x = 235,601,184.73/20,723.73
  6. Step 6: Final answer
    x = 11,368.67

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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.