Home / 25,078.81-34,607.82-13,747.99

Finding the Fourth Proportional to 25,078.81, 34,607.82 and 13,747.99

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Solution

The fourth proportional to 25,078.81, 34,607.82 and 13,747.99 is: 18,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,078.81 : 34,607.82 = 13,747.99 : x
  2. Step 2: Convert to fraction form
    25,078.81/34,607.82 = 13,747.99/x
  3. Step 3: Cross multiply
    25,078.81x = 34,607.82 × 13,747.99
  4. Step 4: Simplify right side
    25,078.81x = 475,787,963.28
  5. Step 5: Solve for x
    x = 475,787,963.28/25,078.81
  6. Step 6: Final answer
    x = 18,971.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.