Home / 30,069.84-41,496.60-18,130.80

Finding the Fourth Proportional to 30,069.84, 41,496.60 and 18,130.80

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Solution

The fourth proportional to 30,069.84, 41,496.60 and 18,130.80 is: 25,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.84 : 41,496.60 = 18,130.80 : x
  2. Step 2: Convert to fraction form
    30,069.84/41,496.60 = 18,130.80/x
  3. Step 3: Cross multiply
    30,069.84x = 41,496.60 × 18,130.80
  4. Step 4: Simplify right side
    30,069.84x = 752,366,555.28
  5. Step 5: Solve for x
    x = 752,366,555.28/30,069.84
  6. Step 6: Final answer
    x = 25,020.64

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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.