Home / 27,965.81-38,580.05-16,628.85

Finding the Fourth Proportional to 27,965.81, 38,580.05 and 16,628.85

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Solution

The fourth proportional to 27,965.81, 38,580.05 and 16,628.85 is: 22,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.81 : 38,580.05 = 16,628.85 : x
  2. Step 2: Convert to fraction form
    27,965.81/38,580.05 = 16,628.85/x
  3. Step 3: Cross multiply
    27,965.81x = 38,580.05 × 16,628.85
  4. Step 4: Simplify right side
    27,965.81x = 641,541,906.01
  5. Step 5: Solve for x
    x = 641,541,906.01/27,965.81
  6. Step 6: Final answer
    x = 22,940.22

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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.