Home / 20,027.70-30,106.35-18,861.30

Finding the Fourth Proportional to 20,027.70, 30,106.35 and 18,861.30

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Solution

The fourth proportional to 20,027.70, 30,106.35 and 18,861.30 is: 28,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.70 : 30,106.35 = 18,861.30 : x
  2. Step 2: Convert to fraction form
    20,027.70/30,106.35 = 18,861.30/x
  3. Step 3: Cross multiply
    20,027.70x = 30,106.35 × 18,861.30
  4. Step 4: Simplify right side
    20,027.70x = 567,844,899.26
  5. Step 5: Solve for x
    x = 567,844,899.26/20,027.70
  6. Step 6: Final answer
    x = 28,352.98

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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.