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Finding the Fourth Proportional to 28,351.16, 42,514.48 and 8,625.16

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Solution

The fourth proportional to 28,351.16, 42,514.48 and 8,625.16 is: 12,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.16 : 42,514.48 = 8,625.16 : x
  2. Step 2: Convert to fraction form
    28,351.16/42,514.48 = 8,625.16/x
  3. Step 3: Cross multiply
    28,351.16x = 42,514.48 × 8,625.16
  4. Step 4: Simplify right side
    28,351.16x = 366,694,192.32
  5. Step 5: Solve for x
    x = 366,694,192.32/28,351.16
  6. Step 6: Final answer
    x = 12,934.01

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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.