Home / 30,190.88-41,634.46-19,424.76

Finding the Fourth Proportional to 30,190.88, 41,634.46 and 19,424.76

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Solution

The fourth proportional to 30,190.88, 41,634.46 and 19,424.76 is: 26,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.88 : 41,634.46 = 19,424.76 : x
  2. Step 2: Convert to fraction form
    30,190.88/41,634.46 = 19,424.76/x
  3. Step 3: Cross multiply
    30,190.88x = 41,634.46 × 19,424.76
  4. Step 4: Simplify right side
    30,190.88x = 808,739,393.23
  5. Step 5: Solve for x
    x = 808,739,393.23/30,190.88
  6. Step 6: Final answer
    x = 26,787.54

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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.