Home / 20,110.60-30,165.90-8,262.36

Finding the Fourth Proportional to 20,110.60, 30,165.90 and 8,262.36

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Solution

The fourth proportional to 20,110.60, 30,165.90 and 8,262.36 is: 12,393.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.60 : 30,165.90 = 8,262.36 : x
  2. Step 2: Convert to fraction form
    20,110.60/30,165.90 = 8,262.36/x
  3. Step 3: Cross multiply
    20,110.60x = 30,165.90 × 8,262.36
  4. Step 4: Simplify right side
    20,110.60x = 249,241,525.52
  5. Step 5: Solve for x
    x = 249,241,525.52/20,110.60
  6. Step 6: Final answer
    x = 12,393.54

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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.