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Finding the Fourth Proportional to 26,272.80, 39,322.80 and 18,496.80

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Solution

The fourth proportional to 26,272.80, 39,322.80 and 18,496.80 is: 27,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,272.80 : 39,322.80 = 18,496.80 : x
  2. Step 2: Convert to fraction form
    26,272.80/39,322.80 = 18,496.80/x
  3. Step 3: Cross multiply
    26,272.80x = 39,322.80 × 18,496.80
  4. Step 4: Simplify right side
    26,272.80x = 727,345,967.04
  5. Step 5: Solve for x
    x = 727,345,967.04/26,272.80
  6. Step 6: Final answer
    x = 27,684.37

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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.