Home / 19,234.40-28,851.60-13,657.55

Finding the Fourth Proportional to 19,234.40, 28,851.60 and 13,657.55

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Solution

The fourth proportional to 19,234.40, 28,851.60 and 13,657.55 is: 20,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.40 : 28,851.60 = 13,657.55 : x
  2. Step 2: Convert to fraction form
    19,234.40/28,851.60 = 13,657.55/x
  3. Step 3: Cross multiply
    19,234.40x = 28,851.60 × 13,657.55
  4. Step 4: Simplify right side
    19,234.40x = 394,042,169.58
  5. Step 5: Solve for x
    x = 394,042,169.58/19,234.40
  6. Step 6: Final answer
    x = 20,486.33

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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.