Home / 27,899.22-38,498.64-15,323.96

Finding the Fourth Proportional to 27,899.22, 38,498.64 and 15,323.96

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Solution

The fourth proportional to 27,899.22, 38,498.64 and 15,323.96 is: 21,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.22 : 38,498.64 = 15,323.96 : x
  2. Step 2: Convert to fraction form
    27,899.22/38,498.64 = 15,323.96/x
  3. Step 3: Cross multiply
    27,899.22x = 38,498.64 × 15,323.96
  4. Step 4: Simplify right side
    27,899.22x = 589,951,619.41
  5. Step 5: Solve for x
    x = 589,951,619.41/27,899.22
  6. Step 6: Final answer
    x = 21,145.81

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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.