Home / 25,260.78-34,860.05-13,930.71

Finding the Fourth Proportional to 25,260.78, 34,860.05 and 13,930.71

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Solution

The fourth proportional to 25,260.78, 34,860.05 and 13,930.71 is: 19,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,260.78 : 34,860.05 = 13,930.71 : x
  2. Step 2: Convert to fraction form
    25,260.78/34,860.05 = 13,930.71/x
  3. Step 3: Cross multiply
    25,260.78x = 34,860.05 × 13,930.71
  4. Step 4: Simplify right side
    25,260.78x = 485,625,247.14
  5. Step 5: Solve for x
    x = 485,625,247.14/25,260.78
  6. Step 6: Final answer
    x = 19,224.48

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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.