Home / 30,573.06-42,211.42-19,105.38

Finding the Fourth Proportional to 30,573.06, 42,211.42 and 19,105.38

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Solution

The fourth proportional to 30,573.06, 42,211.42 and 19,105.38 is: 26,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573.06 : 42,211.42 = 19,105.38 : x
  2. Step 2: Convert to fraction form
    30,573.06/42,211.42 = 19,105.38/x
  3. Step 3: Cross multiply
    30,573.06x = 42,211.42 × 19,105.38
  4. Step 4: Simplify right side
    30,573.06x = 806,465,219.44
  5. Step 5: Solve for x
    x = 806,465,219.44/30,573.06
  6. Step 6: Final answer
    x = 26,378.30

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Half scale
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Double scale
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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.