Home / 39,278.25-58,926.60-12,982.99

Finding the Fourth Proportional to 39,278.25, 58,926.60 and 12,982.99

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Solution

The fourth proportional to 39,278.25, 58,926.60 and 12,982.99 is: 19,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.25 : 58,926.60 = 12,982.99 : x
  2. Step 2: Convert to fraction form
    39,278.25/58,926.60 = 12,982.99/x
  3. Step 3: Cross multiply
    39,278.25x = 58,926.60 × 12,982.99
  4. Step 4: Simplify right side
    39,278.25x = 765,043,397.36
  5. Step 5: Solve for x
    x = 765,043,397.36/39,278.25
  6. Step 6: Final answer
    x = 19,477.53

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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.