Home / 38,300.60-57,450.90-12,005.30

Finding the Fourth Proportional to 38,300.60, 57,450.90 and 12,005.30

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Solution

The fourth proportional to 38,300.60, 57,450.90 and 12,005.30 is: 18,007.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,300.60 : 57,450.90 = 12,005.30 : x
  2. Step 2: Convert to fraction form
    38,300.60/57,450.90 = 12,005.30/x
  3. Step 3: Cross multiply
    38,300.60x = 57,450.90 × 12,005.30
  4. Step 4: Simplify right side
    38,300.60x = 689,715,289.77
  5. Step 5: Solve for x
    x = 689,715,289.77/38,300.60
  6. Step 6: Final answer
    x = 18,007.95

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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.