Home / 30,106.87-41,548.94-18,169.99

Finding the Fourth Proportional to 30,106.87, 41,548.94 and 18,169.99

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Solution

The fourth proportional to 30,106.87, 41,548.94 and 18,169.99 is: 25,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.87 : 41,548.94 = 18,169.99 : x
  2. Step 2: Convert to fraction form
    30,106.87/41,548.94 = 18,169.99/x
  3. Step 3: Cross multiply
    30,106.87x = 41,548.94 × 18,169.99
  4. Step 4: Simplify right side
    30,106.87x = 754,943,824.31
  5. Step 5: Solve for x
    x = 754,943,824.31/30,106.87
  6. Step 6: Final answer
    x = 25,075.47

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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.