Home / 20,558.96-28,371.32-11,608.32

Finding the Fourth Proportional to 20,558.96, 28,371.32 and 11,608.32

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Solution

The fourth proportional to 20,558.96, 28,371.32 and 11,608.32 is: 16,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.96 : 28,371.32 = 11,608.32 : x
  2. Step 2: Convert to fraction form
    20,558.96/28,371.32 = 11,608.32/x
  3. Step 3: Cross multiply
    20,558.96x = 28,371.32 × 11,608.32
  4. Step 4: Simplify right side
    20,558.96x = 329,343,361.38
  5. Step 5: Solve for x
    x = 329,343,361.38/20,558.96
  6. Step 6: Final answer
    x = 16,019.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.