Home / 55,728.04-83,609.82-20,672.68

Finding the Fourth Proportional to 55,728.04, 83,609.82 and 20,672.68

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Solution

The fourth proportional to 55,728.04, 83,609.82 and 20,672.68 is: 31,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.04 : 83,609.82 = 20,672.68 : x
  2. Step 2: Convert to fraction form
    55,728.04/83,609.82 = 20,672.68/x
  3. Step 3: Cross multiply
    55,728.04x = 83,609.82 × 20,672.68
  4. Step 4: Simplify right side
    55,728.04x = 1,728,439,053.72
  5. Step 5: Solve for x
    x = 1,728,439,053.72/55,728.04
  6. Step 6: Final answer
    x = 31,015.61

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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.