Home / 19,340.06-28,958.09-12,281.85

Finding the Fourth Proportional to 19,340.06, 28,958.09 and 12,281.85

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Solution

The fourth proportional to 19,340.06, 28,958.09 and 12,281.85 is: 18,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.06 : 28,958.09 = 12,281.85 : x
  2. Step 2: Convert to fraction form
    19,340.06/28,958.09 = 12,281.85/x
  3. Step 3: Cross multiply
    19,340.06x = 28,958.09 × 12,281.85
  4. Step 4: Simplify right side
    19,340.06x = 355,658,856.26
  5. Step 5: Solve for x
    x = 355,658,856.26/19,340.06
  6. Step 6: Final answer
    x = 18,389.75

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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.