Home / 31,272.60-43,156.89-17,125.68

Finding the Fourth Proportional to 31,272.60, 43,156.89 and 17,125.68

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Solution

The fourth proportional to 31,272.60, 43,156.89 and 17,125.68 is: 23,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,272.60 : 43,156.89 = 17,125.68 : x
  2. Step 2: Convert to fraction form
    31,272.60/43,156.89 = 17,125.68/x
  3. Step 3: Cross multiply
    31,272.60x = 43,156.89 × 17,125.68
  4. Step 4: Simplify right side
    31,272.60x = 739,091,087.94
  5. Step 5: Solve for x
    x = 739,091,087.94/31,272.60
  6. Step 6: Final answer
    x = 23,633.82

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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.