Home / 18,531.37-27,749.69-10,202.23

Finding the Fourth Proportional to 18,531.37, 27,749.69 and 10,202.23

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Solution

The fourth proportional to 18,531.37, 27,749.69 and 10,202.23 is: 15,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.37 : 27,749.69 = 10,202.23 : x
  2. Step 2: Convert to fraction form
    18,531.37/27,749.69 = 10,202.23/x
  3. Step 3: Cross multiply
    18,531.37x = 27,749.69 × 10,202.23
  4. Step 4: Simplify right side
    18,531.37x = 283,108,637.68
  5. Step 5: Solve for x
    x = 283,108,637.68/18,531.37
  6. Step 6: Final answer
    x = 15,277.27

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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.