Home / 19,703.81-29,555.46-4,912.85

Finding the Fourth Proportional to 19,703.81, 29,555.46 and 4,912.85

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Solution

The fourth proportional to 19,703.81, 29,555.46 and 4,912.85 is: 7,369.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.81 : 29,555.46 = 4,912.85 : x
  2. Step 2: Convert to fraction form
    19,703.81/29,555.46 = 4,912.85/x
  3. Step 3: Cross multiply
    19,703.81x = 29,555.46 × 4,912.85
  4. Step 4: Simplify right side
    19,703.81x = 145,201,601.73
  5. Step 5: Solve for x
    x = 145,201,601.73/19,703.81
  6. Step 6: Final answer
    x = 7,369.22

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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.