Home / 20,959.93-28,924.41-12,009.61

Finding the Fourth Proportional to 20,959.93, 28,924.41 and 12,009.61

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Solution

The fourth proportional to 20,959.93, 28,924.41 and 12,009.61 is: 16,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.93 : 28,924.41 = 12,009.61 : x
  2. Step 2: Convert to fraction form
    20,959.93/28,924.41 = 12,009.61/x
  3. Step 3: Cross multiply
    20,959.93x = 28,924.41 × 12,009.61
  4. Step 4: Simplify right side
    20,959.93x = 347,370,883.58
  5. Step 5: Solve for x
    x = 347,370,883.58/20,959.93
  6. Step 6: Final answer
    x = 16,573.09

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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.