Home / 19,230.11-28,838.13-8,137.67

Finding the Fourth Proportional to 19,230.11, 28,838.13 and 8,137.67

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Solution

The fourth proportional to 19,230.11, 28,838.13 and 8,137.67 is: 12,203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.11 : 28,838.13 = 8,137.67 : x
  2. Step 2: Convert to fraction form
    19,230.11/28,838.13 = 8,137.67/x
  3. Step 3: Cross multiply
    19,230.11x = 28,838.13 × 8,137.67
  4. Step 4: Simplify right side
    19,230.11x = 234,675,010.65
  5. Step 5: Solve for x
    x = 234,675,010.65/19,230.11
  6. Step 6: Final answer
    x = 12,203.52

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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.