Home / 21,163.32-31,741.74-5,582.16

Finding the Fourth Proportional to 21,163.32, 31,741.74 and 5,582.16

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Solution

The fourth proportional to 21,163.32, 31,741.74 and 5,582.16 is: 8,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.32 : 31,741.74 = 5,582.16 : x
  2. Step 2: Convert to fraction form
    21,163.32/31,741.74 = 5,582.16/x
  3. Step 3: Cross multiply
    21,163.32x = 31,741.74 × 5,582.16
  4. Step 4: Simplify right side
    21,163.32x = 177,187,471.36
  5. Step 5: Solve for x
    x = 177,187,471.36/21,163.32
  6. Step 6: Final answer
    x = 8,372.39

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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.