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Finding the Fourth Proportional to 27,009.60, 40,449.60 and 21,825.60

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Solution

The fourth proportional to 27,009.60, 40,449.60 and 21,825.60 is: 32,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,009.60 : 40,449.60 = 21,825.60 : x
  2. Step 2: Convert to fraction form
    27,009.60/40,449.60 = 21,825.60/x
  3. Step 3: Cross multiply
    27,009.60x = 40,449.60 × 21,825.60
  4. Step 4: Simplify right side
    27,009.60x = 882,836,789.76
  5. Step 5: Solve for x
    x = 882,836,789.76/27,009.60
  6. Step 6: Final answer
    x = 32,686.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.