Home / 25,143.49-34,695.39-15,071.68

Finding the Fourth Proportional to 25,143.49, 34,695.39 and 15,071.68

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Solution

The fourth proportional to 25,143.49, 34,695.39 and 15,071.68 is: 20,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.49 : 34,695.39 = 15,071.68 : x
  2. Step 2: Convert to fraction form
    25,143.49/34,695.39 = 15,071.68/x
  3. Step 3: Cross multiply
    25,143.49x = 34,695.39 × 15,071.68
  4. Step 4: Simplify right side
    25,143.49x = 522,917,815.56
  5. Step 5: Solve for x
    x = 522,917,815.56/25,143.49
  6. Step 6: Final answer
    x = 20,797.34

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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.