Home / 38,168.63-52,679.01-21,178.34

Finding the Fourth Proportional to 38,168.63, 52,679.01 and 21,178.34

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Solution

The fourth proportional to 38,168.63, 52,679.01 and 21,178.34 is: 29,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.63 : 52,679.01 = 21,178.34 : x
  2. Step 2: Convert to fraction form
    38,168.63/52,679.01 = 21,178.34/x
  3. Step 3: Cross multiply
    38,168.63x = 52,679.01 × 21,178.34
  4. Step 4: Simplify right side
    38,168.63x = 1,115,653,984.64
  5. Step 5: Solve for x
    x = 1,115,653,984.64/38,168.63
  6. Step 6: Final answer
    x = 29,229.61

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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.