Home / 20,707.68-30,993.21-14,692.26

Finding the Fourth Proportional to 20,707.68, 30,993.21 and 14,692.26

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Solution

The fourth proportional to 20,707.68, 30,993.21 and 14,692.26 is: 21,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.68 : 30,993.21 = 14,692.26 : x
  2. Step 2: Convert to fraction form
    20,707.68/30,993.21 = 14,692.26/x
  3. Step 3: Cross multiply
    20,707.68x = 30,993.21 × 14,692.26
  4. Step 4: Simplify right side
    20,707.68x = 455,360,299.55
  5. Step 5: Solve for x
    x = 455,360,299.55/20,707.68
  6. Step 6: Final answer
    x = 21,989.92

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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.