Home / 19,201.19-28,903.67-13,692.65

Finding the Fourth Proportional to 19,201.19, 28,903.67 and 13,692.65

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Solution

The fourth proportional to 19,201.19, 28,903.67 and 13,692.65 is: 20,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.19 : 28,903.67 = 13,692.65 : x
  2. Step 2: Convert to fraction form
    19,201.19/28,903.67 = 13,692.65/x
  3. Step 3: Cross multiply
    19,201.19x = 28,903.67 × 13,692.65
  4. Step 4: Simplify right side
    19,201.19x = 395,767,675.39
  5. Step 5: Solve for x
    x = 395,767,675.39/19,201.19
  6. Step 6: Final answer
    x = 20,611.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.