Home / 19,321.81-26,800.52-18,809.69

Finding the Fourth Proportional to 19,321.81, 26,800.52 and 18,809.69

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Solution

The fourth proportional to 19,321.81, 26,800.52 and 18,809.69 is: 26,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.81 : 26,800.52 = 18,809.69 : x
  2. Step 2: Convert to fraction form
    19,321.81/26,800.52 = 18,809.69/x
  3. Step 3: Cross multiply
    19,321.81x = 26,800.52 × 18,809.69
  4. Step 4: Simplify right side
    19,321.81x = 504,109,244.99
  5. Step 5: Solve for x
    x = 504,109,244.99/19,321.81
  6. Step 6: Final answer
    x = 26,090.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.