Home / 25,309.40-37,971.79-11,992.59

Finding the Fourth Proportional to 25,309.40, 37,971.79 and 11,992.59

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Solution

The fourth proportional to 25,309.40, 37,971.79 and 11,992.59 is: 17,992.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.40 : 37,971.79 = 11,992.59 : x
  2. Step 2: Convert to fraction form
    25,309.40/37,971.79 = 11,992.59/x
  3. Step 3: Cross multiply
    25,309.40x = 37,971.79 × 11,992.59
  4. Step 4: Simplify right side
    25,309.40x = 455,380,079.05
  5. Step 5: Solve for x
    x = 455,380,079.05/25,309.40
  6. Step 6: Final answer
    x = 17,992.53

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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.