Home / 28,016.80-38,666.70-16,083.88

Finding the Fourth Proportional to 28,016.80, 38,666.70 and 16,083.88

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Solution

The fourth proportional to 28,016.80, 38,666.70 and 16,083.88 is: 22,197.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.80 : 38,666.70 = 16,083.88 : x
  2. Step 2: Convert to fraction form
    28,016.80/38,666.70 = 16,083.88/x
  3. Step 3: Cross multiply
    28,016.80x = 38,666.70 × 16,083.88
  4. Step 4: Simplify right side
    28,016.80x = 621,910,562.80
  5. Step 5: Solve for x
    x = 621,910,562.80/28,016.80
  6. Step 6: Final answer
    x = 22,197.77

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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.