Home / 30,188.06-41,633.96-19,434.78

Finding the Fourth Proportional to 30,188.06, 41,633.96 and 19,434.78

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Solution

The fourth proportional to 30,188.06, 41,633.96 and 19,434.78 is: 26,803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.06 : 41,633.96 = 19,434.78 : x
  2. Step 2: Convert to fraction form
    30,188.06/41,633.96 = 19,434.78/x
  3. Step 3: Cross multiply
    30,188.06x = 41,633.96 × 19,434.78
  4. Step 4: Simplify right side
    30,188.06x = 809,146,853.13
  5. Step 5: Solve for x
    x = 809,146,853.13/30,188.06
  6. Step 6: Final answer
    x = 26,803.54

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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.