Home / 25,172.49-34,751.39-15,744.09

Finding the Fourth Proportional to 25,172.49, 34,751.39 and 15,744.09

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Solution

The fourth proportional to 25,172.49, 34,751.39 and 15,744.09 is: 21,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.49 : 34,751.39 = 15,744.09 : x
  2. Step 2: Convert to fraction form
    25,172.49/34,751.39 = 15,744.09/x
  3. Step 3: Cross multiply
    25,172.49x = 34,751.39 × 15,744.09
  4. Step 4: Simplify right side
    25,172.49x = 547,128,933.06
  5. Step 5: Solve for x
    x = 547,128,933.06/25,172.49
  6. Step 6: Final answer
    x = 21,735.19

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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.