Home / 38,759.20-58,138.80-38,467.60

Finding the Fourth Proportional to 38,759.20, 58,138.80 and 38,467.60

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Solution

The fourth proportional to 38,759.20, 58,138.80 and 38,467.60 is: 57,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759.20 : 58,138.80 = 38,467.60 : x
  2. Step 2: Convert to fraction form
    38,759.20/58,138.80 = 38,467.60/x
  3. Step 3: Cross multiply
    38,759.20x = 58,138.80 × 38,467.60
  4. Step 4: Simplify right side
    38,759.20x = 2,236,460,102.88
  5. Step 5: Solve for x
    x = 2,236,460,102.88/38,759.20
  6. Step 6: Final answer
    x = 57,701.40

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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.