Home / 18,971.39-26,189.48-17,172.24

Finding the Fourth Proportional to 18,971.39, 26,189.48 and 17,172.24

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Solution

The fourth proportional to 18,971.39, 26,189.48 and 17,172.24 is: 23,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.39 : 26,189.48 = 17,172.24 : x
  2. Step 2: Convert to fraction form
    18,971.39/26,189.48 = 17,172.24/x
  3. Step 3: Cross multiply
    18,971.39x = 26,189.48 × 17,172.24
  4. Step 4: Simplify right side
    18,971.39x = 449,731,994.65
  5. Step 5: Solve for x
    x = 449,731,994.65/18,971.39
  6. Step 6: Final answer
    x = 23,705.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.