Home / 28,859.43-39,826.81-16,112.12

Finding the Fourth Proportional to 28,859.43, 39,826.81 and 16,112.12

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Solution

The fourth proportional to 28,859.43, 39,826.81 and 16,112.12 is: 22,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.43 : 39,826.81 = 16,112.12 : x
  2. Step 2: Convert to fraction form
    28,859.43/39,826.81 = 16,112.12/x
  3. Step 3: Cross multiply
    28,859.43x = 39,826.81 × 16,112.12
  4. Step 4: Simplify right side
    28,859.43x = 641,694,484.34
  5. Step 5: Solve for x
    x = 641,694,484.34/28,859.43
  6. Step 6: Final answer
    x = 22,235.18

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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.