Home / 20,431.94-30,647.93-7,104.02

Finding the Fourth Proportional to 20,431.94, 30,647.93 and 7,104.02

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Solution

The fourth proportional to 20,431.94, 30,647.93 and 7,104.02 is: 10,656.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431.94 : 30,647.93 = 7,104.02 : x
  2. Step 2: Convert to fraction form
    20,431.94/30,647.93 = 7,104.02/x
  3. Step 3: Cross multiply
    20,431.94x = 30,647.93 × 7,104.02
  4. Step 4: Simplify right side
    20,431.94x = 217,723,318.92
  5. Step 5: Solve for x
    x = 217,723,318.92/20,431.94
  6. Step 6: Final answer
    x = 10,656.03

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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.