Home / 25,011.58-34,516.14-13,680.94

Finding the Fourth Proportional to 25,011.58, 34,516.14 and 13,680.94

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Solution

The fourth proportional to 25,011.58, 34,516.14 and 13,680.94 is: 18,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.58 : 34,516.14 = 13,680.94 : x
  2. Step 2: Convert to fraction form
    25,011.58/34,516.14 = 13,680.94/x
  3. Step 3: Cross multiply
    25,011.58x = 34,516.14 × 13,680.94
  4. Step 4: Simplify right side
    25,011.58x = 472,213,240.37
  5. Step 5: Solve for x
    x = 472,213,240.37/25,011.58
  6. Step 6: Final answer
    x = 18,879.78

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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.