Home / 30,455.66-42,028.54-16,843.70

Finding the Fourth Proportional to 30,455.66, 42,028.54 and 16,843.70

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Solution

The fourth proportional to 30,455.66, 42,028.54 and 16,843.70 is: 23,244.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.66 : 42,028.54 = 16,843.70 : x
  2. Step 2: Convert to fraction form
    30,455.66/42,028.54 = 16,843.70/x
  3. Step 3: Cross multiply
    30,455.66x = 42,028.54 × 16,843.70
  4. Step 4: Simplify right side
    30,455.66x = 707,916,182.16
  5. Step 5: Solve for x
    x = 707,916,182.16/30,455.66
  6. Step 6: Final answer
    x = 23,244.16

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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.