Home / 25,815.52-38,694.39-13,318.12

Finding the Fourth Proportional to 25,815.52, 38,694.39 and 13,318.12

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Solution

The fourth proportional to 25,815.52, 38,694.39 and 13,318.12 is: 19,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.52 : 38,694.39 = 13,318.12 : x
  2. Step 2: Convert to fraction form
    25,815.52/38,694.39 = 13,318.12/x
  3. Step 3: Cross multiply
    25,815.52x = 38,694.39 × 13,318.12
  4. Step 4: Simplify right side
    25,815.52x = 515,336,529.35
  5. Step 5: Solve for x
    x = 515,336,529.35/25,815.52
  6. Step 6: Final answer
    x = 19,962.28

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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.