Home / 25,313.82-34,918.47-15,235.26

Finding the Fourth Proportional to 25,313.82, 34,918.47 and 15,235.26

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Solution

The fourth proportional to 25,313.82, 34,918.47 and 15,235.26 is: 21,015.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,313.82 : 34,918.47 = 15,235.26 : x
  2. Step 2: Convert to fraction form
    25,313.82/34,918.47 = 15,235.26/x
  3. Step 3: Cross multiply
    25,313.82x = 34,918.47 × 15,235.26
  4. Step 4: Simplify right side
    25,313.82x = 531,991,969.25
  5. Step 5: Solve for x
    x = 531,991,969.25/25,313.82
  6. Step 6: Final answer
    x = 21,015.87

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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.