Home / 31,421.76-43,361.64-17,274.48

Finding the Fourth Proportional to 31,421.76, 43,361.64 and 17,274.48

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Solution

The fourth proportional to 31,421.76, 43,361.64 and 17,274.48 is: 23,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.76 : 43,361.64 = 17,274.48 : x
  2. Step 2: Convert to fraction form
    31,421.76/43,361.64 = 17,274.48/x
  3. Step 3: Cross multiply
    31,421.76x = 43,361.64 × 17,274.48
  4. Step 4: Simplify right side
    31,421.76x = 749,049,782.95
  5. Step 5: Solve for x
    x = 749,049,782.95/31,421.76
  6. Step 6: Final answer
    x = 23,838.57

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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.