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Finding the Fourth Proportional to 27,365.60, 40,983.60 and 18,552.80

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Solution

The fourth proportional to 27,365.60, 40,983.60 and 18,552.80 is: 27,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,365.60 : 40,983.60 = 18,552.80 : x
  2. Step 2: Convert to fraction form
    27,365.60/40,983.60 = 18,552.80/x
  3. Step 3: Cross multiply
    27,365.60x = 40,983.60 × 18,552.80
  4. Step 4: Simplify right side
    27,365.60x = 760,360,534.08
  5. Step 5: Solve for x
    x = 760,360,534.08/27,365.60
  6. Step 6: Final answer
    x = 27,785.27

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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.