Home / 31,272.75-43,156.53-17,125.83

Finding the Fourth Proportional to 31,272.75, 43,156.53 and 17,125.83

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Solution

The fourth proportional to 31,272.75, 43,156.53 and 17,125.83 is: 23,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,272.75 : 43,156.53 = 17,125.83 : x
  2. Step 2: Convert to fraction form
    31,272.75/43,156.53 = 17,125.83/x
  3. Step 3: Cross multiply
    31,272.75x = 43,156.53 × 17,125.83
  4. Step 4: Simplify right side
    31,272.75x = 739,091,396.17
  5. Step 5: Solve for x
    x = 739,091,396.17/31,272.75
  6. Step 6: Final answer
    x = 23,633.72

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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.