Home / 19,840.68-27,379.26-10,888.20

Finding the Fourth Proportional to 19,840.68, 27,379.26 and 10,888.20

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Solution

The fourth proportional to 19,840.68, 27,379.26 and 10,888.20 is: 15,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.68 : 27,379.26 = 10,888.20 : x
  2. Step 2: Convert to fraction form
    19,840.68/27,379.26 = 10,888.20/x
  3. Step 3: Cross multiply
    19,840.68x = 27,379.26 × 10,888.20
  4. Step 4: Simplify right side
    19,840.68x = 298,110,858.73
  5. Step 5: Solve for x
    x = 298,110,858.73/19,840.68
  6. Step 6: Final answer
    x = 15,025.23

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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.