Home / 19,823.23-29,739.84-13,991.23

Finding the Fourth Proportional to 19,823.23, 29,739.84 and 13,991.23

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Solution

The fourth proportional to 19,823.23, 29,739.84 and 13,991.23 is: 20,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.23 : 29,739.84 = 13,991.23 : x
  2. Step 2: Convert to fraction form
    19,823.23/29,739.84 = 13,991.23/x
  3. Step 3: Cross multiply
    19,823.23x = 29,739.84 × 13,991.23
  4. Step 4: Simplify right side
    19,823.23x = 416,096,941.60
  5. Step 5: Solve for x
    x = 416,096,941.60/19,823.23
  6. Step 6: Final answer
    x = 20,990.37

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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.