Home / 30,109.70-41,552.12-22,542.68

Finding the Fourth Proportional to 30,109.70, 41,552.12 and 22,542.68

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Solution

The fourth proportional to 30,109.70, 41,552.12 and 22,542.68 is: 31,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.70 : 41,552.12 = 22,542.68 : x
  2. Step 2: Convert to fraction form
    30,109.70/41,552.12 = 22,542.68/x
  3. Step 3: Cross multiply
    30,109.70x = 41,552.12 × 22,542.68
  4. Step 4: Simplify right side
    30,109.70x = 936,696,144.48
  5. Step 5: Solve for x
    x = 936,696,144.48/30,109.70
  6. Step 6: Final answer
    x = 31,109.45

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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.