Home / 31,253.20-43,128.31-17,828.75

Finding the Fourth Proportional to 31,253.20, 43,128.31 and 17,828.75

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Solution

The fourth proportional to 31,253.20, 43,128.31 and 17,828.75 is: 24,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.20 : 43,128.31 = 17,828.75 : x
  2. Step 2: Convert to fraction form
    31,253.20/43,128.31 = 17,828.75/x
  3. Step 3: Cross multiply
    31,253.20x = 43,128.31 × 17,828.75
  4. Step 4: Simplify right side
    31,253.20x = 768,923,856.91
  5. Step 5: Solve for x
    x = 768,923,856.91/31,253.20
  6. Step 6: Final answer
    x = 24,603.04

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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.