Home / 19,783.61-27,301.73-12,229.75

Finding the Fourth Proportional to 19,783.61, 27,301.73 and 12,229.75

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Solution

The fourth proportional to 19,783.61, 27,301.73 and 12,229.75 is: 16,877.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.61 : 27,301.73 = 12,229.75 : x
  2. Step 2: Convert to fraction form
    19,783.61/27,301.73 = 12,229.75/x
  3. Step 3: Cross multiply
    19,783.61x = 27,301.73 × 12,229.75
  4. Step 4: Simplify right side
    19,783.61x = 333,893,305.45
  5. Step 5: Solve for x
    x = 333,893,305.45/19,783.61
  6. Step 6: Final answer
    x = 16,877.27

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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.