Home / 20,029.70-27,639.60-11,077.13

Finding the Fourth Proportional to 20,029.70, 27,639.60 and 11,077.13

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Solution

The fourth proportional to 20,029.70, 27,639.60 and 11,077.13 is: 15,285.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.70 : 27,639.60 = 11,077.13 : x
  2. Step 2: Convert to fraction form
    20,029.70/27,639.60 = 11,077.13/x
  3. Step 3: Cross multiply
    20,029.70x = 27,639.60 × 11,077.13
  4. Step 4: Simplify right side
    20,029.70x = 306,167,304.15
  5. Step 5: Solve for x
    x = 306,167,304.15/20,029.70
  6. Step 6: Final answer
    x = 15,285.67

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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.