Home / 20,253.16-30,338.06-17,919.22

Finding the Fourth Proportional to 20,253.16, 30,338.06 and 17,919.22

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Solution

The fourth proportional to 20,253.16, 30,338.06 and 17,919.22 is: 26,841.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.16 : 30,338.06 = 17,919.22 : x
  2. Step 2: Convert to fraction form
    20,253.16/30,338.06 = 17,919.22/x
  3. Step 3: Cross multiply
    20,253.16x = 30,338.06 × 17,919.22
  4. Step 4: Simplify right side
    20,253.16x = 543,634,371.51
  5. Step 5: Solve for x
    x = 543,634,371.51/20,253.16
  6. Step 6: Final answer
    x = 26,841.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.