Home / 27,783.46-38,301.33-19,811.86

Finding the Fourth Proportional to 27,783.46, 38,301.33 and 19,811.86

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Solution

The fourth proportional to 27,783.46, 38,301.33 and 19,811.86 is: 27,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.46 : 38,301.33 = 19,811.86 : x
  2. Step 2: Convert to fraction form
    27,783.46/38,301.33 = 19,811.86/x
  3. Step 3: Cross multiply
    27,783.46x = 38,301.33 × 19,811.86
  4. Step 4: Simplify right side
    27,783.46x = 758,820,587.77
  5. Step 5: Solve for x
    x = 758,820,587.77/27,783.46
  6. Step 6: Final answer
    x = 27,311.95

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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.