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Finding the Fourth Proportional to 38,361.60, 57,479.04 and 17,539.20

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Solution

The fourth proportional to 38,361.60, 57,479.04 and 17,539.20 is: 26,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,361.60 : 57,479.04 = 17,539.20 : x
  2. Step 2: Convert to fraction form
    38,361.60/57,479.04 = 17,539.20/x
  3. Step 3: Cross multiply
    38,361.60x = 57,479.04 × 17,539.20
  4. Step 4: Simplify right side
    38,361.60x = 1,008,136,378.37
  5. Step 5: Solve for x
    x = 1,008,136,378.37/38,361.60
  6. Step 6: Final answer
    x = 26,279.83

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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.