Home / 19,739.01-27,237.20-12,675.00

Finding the Fourth Proportional to 19,739.01, 27,237.20 and 12,675.00

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Solution

The fourth proportional to 19,739.01, 27,237.20 and 12,675.00 is: 17,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.01 : 27,237.20 = 12,675.00 : x
  2. Step 2: Convert to fraction form
    19,739.01/27,237.20 = 12,675.00/x
  3. Step 3: Cross multiply
    19,739.01x = 27,237.20 × 12,675.00
  4. Step 4: Simplify right side
    19,739.01x = 345,231,405.50
  5. Step 5: Solve for x
    x = 345,231,405.50/19,739.01
  6. Step 6: Final answer
    x = 17,489.81

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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.