Home / 28,016.60-38,654.66-16,680.43

Finding the Fourth Proportional to 28,016.60, 38,654.66 and 16,680.43

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Solution

The fourth proportional to 28,016.60, 38,654.66 and 16,680.43 is: 23,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.60 : 38,654.66 = 16,680.43 : x
  2. Step 2: Convert to fraction form
    28,016.60/38,654.66 = 16,680.43/x
  3. Step 3: Cross multiply
    28,016.60x = 38,654.66 × 16,680.43
  4. Step 4: Simplify right side
    28,016.60x = 644,776,295.37
  5. Step 5: Solve for x
    x = 644,776,295.37/28,016.60
  6. Step 6: Final answer
    x = 23,014.08

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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.