Home / 19,733.20-27,221.69-13,360.02

Finding the Fourth Proportional to 19,733.20, 27,221.69 and 13,360.02

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Solution

The fourth proportional to 19,733.20, 27,221.69 and 13,360.02 is: 18,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,733.20 : 27,221.69 = 13,360.02 : x
  2. Step 2: Convert to fraction form
    19,733.20/27,221.69 = 13,360.02/x
  3. Step 3: Cross multiply
    19,733.20x = 27,221.69 × 13,360.02
  4. Step 4: Simplify right side
    19,733.20x = 363,682,322.83
  5. Step 5: Solve for x
    x = 363,682,322.83/19,733.20
  6. Step 6: Final answer
    x = 18,429.97

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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.