Home / 20,004.60-29,949.30-12,228.60

Finding the Fourth Proportional to 20,004.60, 29,949.30 and 12,228.60

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Solution

The fourth proportional to 20,004.60, 29,949.30 and 12,228.60 is: 18,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.60 : 29,949.30 = 12,228.60 : x
  2. Step 2: Convert to fraction form
    20,004.60/29,949.30 = 12,228.60/x
  3. Step 3: Cross multiply
    20,004.60x = 29,949.30 × 12,228.60
  4. Step 4: Simplify right side
    20,004.60x = 366,238,009.98
  5. Step 5: Solve for x
    x = 366,238,009.98/20,004.60
  6. Step 6: Final answer
    x = 18,307.69

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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.