Home / 19,431.54-29,173.95-10,078.02

Finding the Fourth Proportional to 19,431.54, 29,173.95 and 10,078.02

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Solution

The fourth proportional to 19,431.54, 29,173.95 and 10,078.02 is: 15,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.54 : 29,173.95 = 10,078.02 : x
  2. Step 2: Convert to fraction form
    19,431.54/29,173.95 = 10,078.02/x
  3. Step 3: Cross multiply
    19,431.54x = 29,173.95 × 10,078.02
  4. Step 4: Simplify right side
    19,431.54x = 294,015,651.58
  5. Step 5: Solve for x
    x = 294,015,651.58/19,431.54
  6. Step 6: Final answer
    x = 15,130.85

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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.