Home / 40,728.96-61,101.86-19,683.64

Finding the Fourth Proportional to 40,728.96, 61,101.86 and 19,683.64

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Solution

The fourth proportional to 40,728.96, 61,101.86 and 19,683.64 is: 29,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728.96 : 61,101.86 = 19,683.64 : x
  2. Step 2: Convert to fraction form
    40,728.96/61,101.86 = 19,683.64/x
  3. Step 3: Cross multiply
    40,728.96x = 61,101.86 × 19,683.64
  4. Step 4: Simplify right side
    40,728.96x = 1,202,707,217.53
  5. Step 5: Solve for x
    x = 1,202,707,217.53/40,728.96
  6. Step 6: Final answer
    x = 29,529.54

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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.