Home / 19,990.08-27,586.08-13,704.48

Finding the Fourth Proportional to 19,990.08, 27,586.08 and 13,704.48

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Solution

The fourth proportional to 19,990.08, 27,586.08 and 13,704.48 is: 18,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.08 : 27,586.08 = 13,704.48 : x
  2. Step 2: Convert to fraction form
    19,990.08/27,586.08 = 13,704.48/x
  3. Step 3: Cross multiply
    19,990.08x = 27,586.08 × 13,704.48
  4. Step 4: Simplify right side
    19,990.08x = 378,052,881.64
  5. Step 5: Solve for x
    x = 378,052,881.64/19,990.08
  6. Step 6: Final answer
    x = 18,912.02

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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.