Home / 38,409.69-57,620.61-13,449.12

Finding the Fourth Proportional to 38,409.69, 57,620.61 and 13,449.12

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Solution

The fourth proportional to 38,409.69, 57,620.61 and 13,449.12 is: 20,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,409.69 : 57,620.61 = 13,449.12 : x
  2. Step 2: Convert to fraction form
    38,409.69/57,620.61 = 13,449.12/x
  3. Step 3: Cross multiply
    38,409.69x = 57,620.61 × 13,449.12
  4. Step 4: Simplify right side
    38,409.69x = 774,946,498.36
  5. Step 5: Solve for x
    x = 774,946,498.36/38,409.69
  6. Step 6: Final answer
    x = 20,175.81

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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.