Home / 19,789.85-27,313.08-11,291.96

Finding the Fourth Proportional to 19,789.85, 27,313.08 and 11,291.96

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Solution

The fourth proportional to 19,789.85, 27,313.08 and 11,291.96 is: 15,584.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.85 : 27,313.08 = 11,291.96 : x
  2. Step 2: Convert to fraction form
    19,789.85/27,313.08 = 11,291.96/x
  3. Step 3: Cross multiply
    19,789.85x = 27,313.08 × 11,291.96
  4. Step 4: Simplify right side
    19,789.85x = 308,418,206.84
  5. Step 5: Solve for x
    x = 308,418,206.84/19,789.85
  6. Step 6: Final answer
    x = 15,584.67

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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.