Home / 28,867.29-39,836.47-16,120.69

Finding the Fourth Proportional to 28,867.29, 39,836.47 and 16,120.69

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Solution

The fourth proportional to 28,867.29, 39,836.47 and 16,120.69 is: 22,246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.29 : 39,836.47 = 16,120.69 : x
  2. Step 2: Convert to fraction form
    28,867.29/39,836.47 = 16,120.69/x
  3. Step 3: Cross multiply
    28,867.29x = 39,836.47 × 16,120.69
  4. Step 4: Simplify right side
    28,867.29x = 642,191,383.56
  5. Step 5: Solve for x
    x = 642,191,383.56/28,867.29
  6. Step 6: Final answer
    x = 22,246.33

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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.