Home / 31,798.72-43,883.70-18,371.74

Finding the Fourth Proportional to 31,798.72, 43,883.70 and 18,371.74

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Solution

The fourth proportional to 31,798.72, 43,883.70 and 18,371.74 is: 25,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.72 : 43,883.70 = 18,371.74 : x
  2. Step 2: Convert to fraction form
    31,798.72/43,883.70 = 18,371.74/x
  3. Step 3: Cross multiply
    31,798.72x = 43,883.70 × 18,371.74
  4. Step 4: Simplify right side
    31,798.72x = 806,219,926.64
  5. Step 5: Solve for x
    x = 806,219,926.64/31,798.72
  6. Step 6: Final answer
    x = 25,353.85

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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.