Home / 20,799.25-28,692.93-13,626.05

Finding the Fourth Proportional to 20,799.25, 28,692.93 and 13,626.05

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Solution

The fourth proportional to 20,799.25, 28,692.93 and 13,626.05 is: 18,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.25 : 28,692.93 = 13,626.05 : x
  2. Step 2: Convert to fraction form
    20,799.25/28,692.93 = 13,626.05/x
  3. Step 3: Cross multiply
    20,799.25x = 28,692.93 × 13,626.05
  4. Step 4: Simplify right side
    20,799.25x = 390,971,227.09
  5. Step 5: Solve for x
    x = 390,971,227.09/20,799.25
  6. Step 6: Final answer
    x = 18,797.37

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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.