Home / 28,066.56-38,725.92-16,128.96

Finding the Fourth Proportional to 28,066.56, 38,725.92 and 16,128.96

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Solution

The fourth proportional to 28,066.56, 38,725.92 and 16,128.96 is: 22,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.56 : 38,725.92 = 16,128.96 : x
  2. Step 2: Convert to fraction form
    28,066.56/38,725.92 = 16,128.96/x
  3. Step 3: Cross multiply
    28,066.56x = 38,725.92 × 16,128.96
  4. Step 4: Simplify right side
    28,066.56x = 624,608,814.64
  5. Step 5: Solve for x
    x = 624,608,814.64/28,066.56
  6. Step 6: Final answer
    x = 22,254.56

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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.