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Finding the Fourth Proportional to 38,881.88, 58,323.72 and 13,923.64

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Solution

The fourth proportional to 38,881.88, 58,323.72 and 13,923.64 is: 20,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881.88 : 58,323.72 = 13,923.64 : x
  2. Step 2: Convert to fraction form
    38,881.88/58,323.72 = 13,923.64/x
  3. Step 3: Cross multiply
    38,881.88x = 58,323.72 × 13,923.64
  4. Step 4: Simplify right side
    38,881.88x = 812,078,480.74
  5. Step 5: Solve for x
    x = 812,078,480.74/38,881.88
  6. Step 6: Final answer
    x = 20,885.78

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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.