Home / 19,984.80-27,579.92-11,489.67

Finding the Fourth Proportional to 19,984.80, 27,579.92 and 11,489.67

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Solution

The fourth proportional to 19,984.80, 27,579.92 and 11,489.67 is: 15,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.80 : 27,579.92 = 11,489.67 : x
  2. Step 2: Convert to fraction form
    19,984.80/27,579.92 = 11,489.67/x
  3. Step 3: Cross multiply
    19,984.80x = 27,579.92 × 11,489.67
  4. Step 4: Simplify right side
    19,984.80x = 316,884,179.43
  5. Step 5: Solve for x
    x = 316,884,179.43/19,984.80
  6. Step 6: Final answer
    x = 15,856.26

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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.