Home / 39,280.53-58,930.02-12,985.27

Finding the Fourth Proportional to 39,280.53, 58,930.02 and 12,985.27

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Solution

The fourth proportional to 39,280.53, 58,930.02 and 12,985.27 is: 19,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.53 : 58,930.02 = 12,985.27 : x
  2. Step 2: Convert to fraction form
    39,280.53/58,930.02 = 12,985.27/x
  3. Step 3: Cross multiply
    39,280.53x = 58,930.02 × 12,985.27
  4. Step 4: Simplify right side
    39,280.53x = 765,222,220.81
  5. Step 5: Solve for x
    x = 765,222,220.81/39,280.53
  6. Step 6: Final answer
    x = 19,480.95

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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.