Home / 22,157.77-30,578.54-13,206.10

Finding the Fourth Proportional to 22,157.77, 30,578.54 and 13,206.10

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Solution

The fourth proportional to 22,157.77, 30,578.54 and 13,206.10 is: 18,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.77 : 30,578.54 = 13,206.10 : x
  2. Step 2: Convert to fraction form
    22,157.77/30,578.54 = 13,206.10/x
  3. Step 3: Cross multiply
    22,157.77x = 30,578.54 × 13,206.10
  4. Step 4: Simplify right side
    22,157.77x = 403,823,257.09
  5. Step 5: Solve for x
    x = 403,823,257.09/22,157.77
  6. Step 6: Final answer
    x = 18,224.91

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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.