Home / 28,016.64-38,661.56-16,079.66

Finding the Fourth Proportional to 28,016.64, 38,661.56 and 16,079.66

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Solution

The fourth proportional to 28,016.64, 38,661.56 and 16,079.66 is: 22,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.64 : 38,661.56 = 16,079.66 : x
  2. Step 2: Convert to fraction form
    28,016.64/38,661.56 = 16,079.66/x
  3. Step 3: Cross multiply
    28,016.64x = 38,661.56 × 16,079.66
  4. Step 4: Simplify right side
    28,016.64x = 621,664,739.87
  5. Step 5: Solve for x
    x = 621,664,739.87/28,016.64
  6. Step 6: Final answer
    x = 22,189.13

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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.