Home / 18,502.21-27,765.47-13,556.76

Finding the Fourth Proportional to 18,502.21, 27,765.47 and 13,556.76

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Solution

The fourth proportional to 18,502.21, 27,765.47 and 13,556.76 is: 20,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.21 : 27,765.47 = 13,556.76 : x
  2. Step 2: Convert to fraction form
    18,502.21/27,765.47 = 13,556.76/x
  3. Step 3: Cross multiply
    18,502.21x = 27,765.47 × 13,556.76
  4. Step 4: Simplify right side
    18,502.21x = 376,409,813.08
  5. Step 5: Solve for x
    x = 376,409,813.08/18,502.21
  6. Step 6: Final answer
    x = 20,344.05

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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.