Home / 20,037.70-30,023.61-12,623.77

Finding the Fourth Proportional to 20,037.70, 30,023.61 and 12,623.77

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Solution

The fourth proportional to 20,037.70, 30,023.61 and 12,623.77 is: 18,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.70 : 30,023.61 = 12,623.77 : x
  2. Step 2: Convert to fraction form
    20,037.70/30,023.61 = 12,623.77/x
  3. Step 3: Cross multiply
    20,037.70x = 30,023.61 × 12,623.77
  4. Step 4: Simplify right side
    20,037.70x = 379,011,147.21
  5. Step 5: Solve for x
    x = 379,011,147.21/20,037.70
  6. Step 6: Final answer
    x = 18,914.90

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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.