Home / 28,239.36-38,996.24-18,185.46

Finding the Fourth Proportional to 28,239.36, 38,996.24 and 18,185.46

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Solution

The fourth proportional to 28,239.36, 38,996.24 and 18,185.46 is: 25,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.36 : 38,996.24 = 18,185.46 : x
  2. Step 2: Convert to fraction form
    28,239.36/38,996.24 = 18,185.46/x
  3. Step 3: Cross multiply
    28,239.36x = 38,996.24 × 18,185.46
  4. Step 4: Simplify right side
    28,239.36x = 709,164,471.74
  5. Step 5: Solve for x
    x = 709,164,471.74/28,239.36
  6. Step 6: Final answer
    x = 25,112.63

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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.