Home / 27,692.51-41,538.45-18,785.78

Finding the Fourth Proportional to 27,692.51, 41,538.45 and 18,785.78

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Solution

The fourth proportional to 27,692.51, 41,538.45 and 18,785.78 is: 28,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.51 : 41,538.45 = 18,785.78 : x
  2. Step 2: Convert to fraction form
    27,692.51/41,538.45 = 18,785.78/x
  3. Step 3: Cross multiply
    27,692.51x = 41,538.45 × 18,785.78
  4. Step 4: Simplify right side
    27,692.51x = 780,331,975.55
  5. Step 5: Solve for x
    x = 780,331,975.55/27,692.51
  6. Step 6: Final answer
    x = 28,178.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.