Home / 22,022.25-30,378-14,055.49

Finding the Fourth Proportional to 22,022.25, 30,378 and 14,055.49

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Solution

The fourth proportional to 22,022.25, 30,378 and 14,055.49 is: 19,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,022.25 : 30,378 = 14,055.49 : x
  2. Step 2: Convert to fraction form
    22,022.25/30,378 = 14,055.49/x
  3. Step 3: Cross multiply
    22,022.25x = 30,378 × 14,055.49
  4. Step 4: Simplify right side
    22,022.25x = 426,977,675.22
  5. Step 5: Solve for x
    x = 426,977,675.22/22,022.25
  6. Step 6: Final answer
    x = 19,388.47

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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.