Home / 19,789.44-27,312.03-11,289.61

Finding the Fourth Proportional to 19,789.44, 27,312.03 and 11,289.61

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Solution

The fourth proportional to 19,789.44, 27,312.03 and 11,289.61 is: 15,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.44 : 27,312.03 = 11,289.61 : x
  2. Step 2: Convert to fraction form
    19,789.44/27,312.03 = 11,289.61/x
  3. Step 3: Cross multiply
    19,789.44x = 27,312.03 × 11,289.61
  4. Step 4: Simplify right side
    19,789.44x = 308,341,974.00
  5. Step 5: Solve for x
    x = 308,341,974.00/19,789.44
  6. Step 6: Final answer
    x = 15,581.14

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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.