Home / 28,728.08-43,105.16-12,924.44

Finding the Fourth Proportional to 28,728.08, 43,105.16 and 12,924.44

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Solution

The fourth proportional to 28,728.08, 43,105.16 and 12,924.44 is: 19,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.08 : 43,105.16 = 12,924.44 : x
  2. Step 2: Convert to fraction form
    28,728.08/43,105.16 = 12,924.44/x
  3. Step 3: Cross multiply
    28,728.08x = 43,105.16 × 12,924.44
  4. Step 4: Simplify right side
    28,728.08x = 557,109,870.90
  5. Step 5: Solve for x
    x = 557,109,870.90/28,728.08
  6. Step 6: Final answer
    x = 19,392.52

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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.