Home / 20,390.20-28,125.53-14,733.26

Finding the Fourth Proportional to 20,390.20, 28,125.53 and 14,733.26

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Solution

The fourth proportional to 20,390.20, 28,125.53 and 14,733.26 is: 20,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.20 : 28,125.53 = 14,733.26 : x
  2. Step 2: Convert to fraction form
    20,390.20/28,125.53 = 14,733.26/x
  3. Step 3: Cross multiply
    20,390.20x = 28,125.53 × 14,733.26
  4. Step 4: Simplify right side
    20,390.20x = 414,380,692.55
  5. Step 5: Solve for x
    x = 414,380,692.55/20,390.20
  6. Step 6: Final answer
    x = 20,322.54

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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.