Home / 39,296.20-58,921.60-12,993.88

Finding the Fourth Proportional to 39,296.20, 58,921.60 and 12,993.88

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Solution

The fourth proportional to 39,296.20, 58,921.60 and 12,993.88 is: 19,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.20 : 58,921.60 = 12,993.88 : x
  2. Step 2: Convert to fraction form
    39,296.20/58,921.60 = 12,993.88/x
  3. Step 3: Cross multiply
    39,296.20x = 58,921.60 × 12,993.88
  4. Step 4: Simplify right side
    39,296.20x = 765,620,199.81
  5. Step 5: Solve for x
    x = 765,620,199.81/39,296.20
  6. Step 6: Final answer
    x = 19,483.31

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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.