Home / 20,214.18-27,896.43-11,261.67

Finding the Fourth Proportional to 20,214.18, 27,896.43 and 11,261.67

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Solution

The fourth proportional to 20,214.18, 27,896.43 and 11,261.67 is: 15,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.18 : 27,896.43 = 11,261.67 : x
  2. Step 2: Convert to fraction form
    20,214.18/27,896.43 = 11,261.67/x
  3. Step 3: Cross multiply
    20,214.18x = 27,896.43 × 11,261.67
  4. Step 4: Simplify right side
    20,214.18x = 314,160,388.84
  5. Step 5: Solve for x
    x = 314,160,388.84/20,214.18
  6. Step 6: Final answer
    x = 15,541.58

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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.