Home / 20,515.94-30,774.17-7,368.31

Finding the Fourth Proportional to 20,515.94, 30,774.17 and 7,368.31

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Solution

The fourth proportional to 20,515.94, 30,774.17 and 7,368.31 is: 11,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.94 : 30,774.17 = 7,368.31 : x
  2. Step 2: Convert to fraction form
    20,515.94/30,774.17 = 7,368.31/x
  3. Step 3: Cross multiply
    20,515.94x = 30,774.17 × 7,368.31
  4. Step 4: Simplify right side
    20,515.94x = 226,753,607.99
  5. Step 5: Solve for x
    x = 226,753,607.99/20,515.94
  6. Step 6: Final answer
    x = 11,052.56

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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.