Home / 27,945.20-41,917.80-21,384.20

Finding the Fourth Proportional to 27,945.20, 41,917.80 and 21,384.20

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Solution

The fourth proportional to 27,945.20, 41,917.80 and 21,384.20 is: 32,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.20 : 41,917.80 = 21,384.20 : x
  2. Step 2: Convert to fraction form
    27,945.20/41,917.80 = 21,384.20/x
  3. Step 3: Cross multiply
    27,945.20x = 41,917.80 × 21,384.20
  4. Step 4: Simplify right side
    27,945.20x = 896,378,618.76
  5. Step 5: Solve for x
    x = 896,378,618.76/27,945.20
  6. Step 6: Final answer
    x = 32,076.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.