Home / 20,313.25-30,473.70-9,220.72

Finding the Fourth Proportional to 20,313.25, 30,473.70 and 9,220.72

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Solution

The fourth proportional to 20,313.25, 30,473.70 and 9,220.72 is: 13,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.25 : 30,473.70 = 9,220.72 : x
  2. Step 2: Convert to fraction form
    20,313.25/30,473.70 = 9,220.72/x
  3. Step 3: Cross multiply
    20,313.25x = 30,473.70 × 9,220.72
  4. Step 4: Simplify right side
    20,313.25x = 280,989,485.14
  5. Step 5: Solve for x
    x = 280,989,485.14/20,313.25
  6. Step 6: Final answer
    x = 13,832.82

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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.