Home / 18,982.64-28,453.73-14,288.13

Finding the Fourth Proportional to 18,982.64, 28,453.73 and 14,288.13

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Solution

The fourth proportional to 18,982.64, 28,453.73 and 14,288.13 is: 21,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.64 : 28,453.73 = 14,288.13 : x
  2. Step 2: Convert to fraction form
    18,982.64/28,453.73 = 14,288.13/x
  3. Step 3: Cross multiply
    18,982.64x = 28,453.73 × 14,288.13
  4. Step 4: Simplify right side
    18,982.64x = 406,550,593.22
  5. Step 5: Solve for x
    x = 406,550,593.22/18,982.64
  6. Step 6: Final answer
    x = 21,416.97

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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.