Home / 20,657.98-28,497.99-12,268.54

Finding the Fourth Proportional to 20,657.98, 28,497.99 and 12,268.54

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Solution

The fourth proportional to 20,657.98, 28,497.99 and 12,268.54 is: 16,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.98 : 28,497.99 = 12,268.54 : x
  2. Step 2: Convert to fraction form
    20,657.98/28,497.99 = 12,268.54/x
  3. Step 3: Cross multiply
    20,657.98x = 28,497.99 × 12,268.54
  4. Step 4: Simplify right side
    20,657.98x = 349,628,730.23
  5. Step 5: Solve for x
    x = 349,628,730.23/20,657.98
  6. Step 6: Final answer
    x = 16,924.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.