Home / 31,429.20-43,372.84-17,283.36

Finding the Fourth Proportional to 31,429.20, 43,372.84 and 17,283.36

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Solution

The fourth proportional to 31,429.20, 43,372.84 and 17,283.36 is: 23,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.20 : 43,372.84 = 17,283.36 : x
  2. Step 2: Convert to fraction form
    31,429.20/43,372.84 = 17,283.36/x
  3. Step 3: Cross multiply
    31,429.20x = 43,372.84 × 17,283.36
  4. Step 4: Simplify right side
    31,429.20x = 749,628,407.94
  5. Step 5: Solve for x
    x = 749,628,407.94/31,429.20
  6. Step 6: Final answer
    x = 23,851.34

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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.