Home / 28,578.92-39,402.30-22,194.70

Finding the Fourth Proportional to 28,578.92, 39,402.30 and 22,194.70

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Solution

The fourth proportional to 28,578.92, 39,402.30 and 22,194.70 is: 30,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.92 : 39,402.30 = 22,194.70 : x
  2. Step 2: Convert to fraction form
    28,578.92/39,402.30 = 22,194.70/x
  3. Step 3: Cross multiply
    28,578.92x = 39,402.30 × 22,194.70
  4. Step 4: Simplify right side
    28,578.92x = 874,522,227.81
  5. Step 5: Solve for x
    x = 874,522,227.81/28,578.92
  6. Step 6: Final answer
    x = 30,600.25

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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.