Home / 26,111.93-39,118.56-20,239.79

Finding the Fourth Proportional to 26,111.93, 39,118.56 and 20,239.79

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Solution

The fourth proportional to 26,111.93, 39,118.56 and 20,239.79 is: 30,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,111.93 : 39,118.56 = 20,239.79 : x
  2. Step 2: Convert to fraction form
    26,111.93/39,118.56 = 20,239.79/x
  3. Step 3: Cross multiply
    26,111.93x = 39,118.56 × 20,239.79
  4. Step 4: Simplify right side
    26,111.93x = 791,751,439.50
  5. Step 5: Solve for x
    x = 791,751,439.50/26,111.93
  6. Step 6: Final answer
    x = 30,321.44

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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.