Home / 20,816.05-31,224.37-6,776.16

Finding the Fourth Proportional to 20,816.05, 31,224.37 and 6,776.16

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Solution

The fourth proportional to 20,816.05, 31,224.37 and 6,776.16 is: 10,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.05 : 31,224.37 = 6,776.16 : x
  2. Step 2: Convert to fraction form
    20,816.05/31,224.37 = 6,776.16/x
  3. Step 3: Cross multiply
    20,816.05x = 31,224.37 × 6,776.16
  4. Step 4: Simplify right side
    20,816.05x = 211,581,327.02
  5. Step 5: Solve for x
    x = 211,581,327.02/20,816.05
  6. Step 6: Final answer
    x = 10,164.34

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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.