Home / 19,045.35-28,559.39-12,375.27

Finding the Fourth Proportional to 19,045.35, 28,559.39 and 12,375.27

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Solution

The fourth proportional to 19,045.35, 28,559.39 and 12,375.27 is: 18,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.35 : 28,559.39 = 12,375.27 : x
  2. Step 2: Convert to fraction form
    19,045.35/28,559.39 = 12,375.27/x
  3. Step 3: Cross multiply
    19,045.35x = 28,559.39 × 12,375.27
  4. Step 4: Simplify right side
    19,045.35x = 353,430,100.41
  5. Step 5: Solve for x
    x = 353,430,100.41/19,045.35
  6. Step 6: Final answer
    x = 18,557.29

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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.