Home / 19,739.65-27,231.96-11,777.24

Finding the Fourth Proportional to 19,739.65, 27,231.96 and 11,777.24

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Solution

The fourth proportional to 19,739.65, 27,231.96 and 11,777.24 is: 16,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.65 : 27,231.96 = 11,777.24 : x
  2. Step 2: Convert to fraction form
    19,739.65/27,231.96 = 11,777.24/x
  3. Step 3: Cross multiply
    19,739.65x = 27,231.96 × 11,777.24
  4. Step 4: Simplify right side
    19,739.65x = 320,717,328.59
  5. Step 5: Solve for x
    x = 320,717,328.59/19,739.65
  6. Step 6: Final answer
    x = 16,247.37

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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.