Home / 27,993.18-38,628.05-16,660.86

Finding the Fourth Proportional to 27,993.18, 38,628.05 and 16,660.86

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Solution

The fourth proportional to 27,993.18, 38,628.05 and 16,660.86 is: 22,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.18 : 38,628.05 = 16,660.86 : x
  2. Step 2: Convert to fraction form
    27,993.18/38,628.05 = 16,660.86/x
  3. Step 3: Cross multiply
    27,993.18x = 38,628.05 × 16,660.86
  4. Step 4: Simplify right side
    27,993.18x = 643,576,449.82
  5. Step 5: Solve for x
    x = 643,576,449.82/27,993.18
  6. Step 6: Final answer
    x = 22,990.47

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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.