Home / 28,832.32-43,218.48-12,178.48

Finding the Fourth Proportional to 28,832.32, 43,218.48 and 12,178.48

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Solution

The fourth proportional to 28,832.32, 43,218.48 and 12,178.48 is: 18,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,832.32 : 43,218.48 = 12,178.48 : x
  2. Step 2: Convert to fraction form
    28,832.32/43,218.48 = 12,178.48/x
  3. Step 3: Cross multiply
    28,832.32x = 43,218.48 × 12,178.48
  4. Step 4: Simplify right side
    28,832.32x = 526,335,394.31
  5. Step 5: Solve for x
    x = 526,335,394.31/28,832.32
  6. Step 6: Final answer
    x = 18,255.05

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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.