Home / 31,421.24-43,361.46-17,275

Finding the Fourth Proportional to 31,421.24, 43,361.46 and 17,275

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Solution

The fourth proportional to 31,421.24, 43,361.46 and 17,275 is: 23,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.24 : 43,361.46 = 17,275 : x
  2. Step 2: Convert to fraction form
    31,421.24/43,361.46 = 17,275/x
  3. Step 3: Cross multiply
    31,421.24x = 43,361.46 × 17,275
  4. Step 4: Simplify right side
    31,421.24x = 749,069,221.50
  5. Step 5: Solve for x
    x = 749,069,221.50/31,421.24
  6. Step 6: Final answer
    x = 23,839.58

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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.