Home / 39,280.25-58,929.60-12,984.99

Finding the Fourth Proportional to 39,280.25, 58,929.60 and 12,984.99

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Solution

The fourth proportional to 39,280.25, 58,929.60 and 12,984.99 is: 19,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.25 : 58,929.60 = 12,984.99 : x
  2. Step 2: Convert to fraction form
    39,280.25/58,929.60 = 12,984.99/x
  3. Step 3: Cross multiply
    39,280.25x = 58,929.60 × 12,984.99
  4. Step 4: Simplify right side
    39,280.25x = 765,200,266.70
  5. Step 5: Solve for x
    x = 765,200,266.70/39,280.25
  6. Step 6: Final answer
    x = 19,480.53

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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.