Home / 38,908.88-53,699.04-22,138.64

Finding the Fourth Proportional to 38,908.88, 53,699.04 and 22,138.64

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Solution

The fourth proportional to 38,908.88, 53,699.04 and 22,138.64 is: 30,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,908.88 : 53,699.04 = 22,138.64 : x
  2. Step 2: Convert to fraction form
    38,908.88/53,699.04 = 22,138.64/x
  3. Step 3: Cross multiply
    38,908.88x = 53,699.04 × 22,138.64
  4. Step 4: Simplify right side
    38,908.88x = 1,188,823,714.91
  5. Step 5: Solve for x
    x = 1,188,823,714.91/38,908.88
  6. Step 6: Final answer
    x = 30,554.05

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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.