Home / 27,819.86-38,370.47-19,322.00

Finding the Fourth Proportional to 27,819.86, 38,370.47 and 19,322.00

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Solution

The fourth proportional to 27,819.86, 38,370.47 and 19,322.00 is: 26,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.86 : 38,370.47 = 19,322.00 : x
  2. Step 2: Convert to fraction form
    27,819.86/38,370.47 = 19,322.00/x
  3. Step 3: Cross multiply
    27,819.86x = 38,370.47 × 19,322.00
  4. Step 4: Simplify right side
    27,819.86x = 741,393,932.88
  5. Step 5: Solve for x
    x = 741,393,932.88/27,819.86
  6. Step 6: Final answer
    x = 26,649.81

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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.