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Finding the Fourth Proportional to 38,168.64, 52,672.73 and 21,401.64

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Solution

The fourth proportional to 38,168.64, 52,672.73 and 21,401.64 is: 29,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.64 : 52,672.73 = 21,401.64 : x
  2. Step 2: Convert to fraction form
    38,168.64/52,672.73 = 21,401.64/x
  3. Step 3: Cross multiply
    38,168.64x = 52,672.73 × 21,401.64
  4. Step 4: Simplify right side
    38,168.64x = 1,127,282,805.28
  5. Step 5: Solve for x
    x = 1,127,282,805.28/38,168.64
  6. Step 6: Final answer
    x = 29,534.27

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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.