Home / 19,087.67-28,607.94-13,840.69

Finding the Fourth Proportional to 19,087.67, 28,607.94 and 13,840.69

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Solution

The fourth proportional to 19,087.67, 28,607.94 and 13,840.69 is: 20,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.67 : 28,607.94 = 13,840.69 : x
  2. Step 2: Convert to fraction form
    19,087.67/28,607.94 = 13,840.69/x
  3. Step 3: Cross multiply
    19,087.67x = 28,607.94 × 13,840.69
  4. Step 4: Simplify right side
    19,087.67x = 395,953,629.08
  5. Step 5: Solve for x
    x = 395,953,629.08/19,087.67
  6. Step 6: Final answer
    x = 20,743.95

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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.