Home / 20,218.93-27,905.78-11,726.48

Finding the Fourth Proportional to 20,218.93, 27,905.78 and 11,726.48

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Solution

The fourth proportional to 20,218.93, 27,905.78 and 11,726.48 is: 16,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.93 : 27,905.78 = 11,726.48 : x
  2. Step 2: Convert to fraction form
    20,218.93/27,905.78 = 11,726.48/x
  3. Step 3: Cross multiply
    20,218.93x = 27,905.78 × 11,726.48
  4. Step 4: Simplify right side
    20,218.93x = 327,236,670.14
  5. Step 5: Solve for x
    x = 327,236,670.14/20,218.93
  6. Step 6: Final answer
    x = 16,184.67

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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.