Home / 31,433.70-43,378.02-17,286.51

Finding the Fourth Proportional to 31,433.70, 43,378.02 and 17,286.51

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Solution

The fourth proportional to 31,433.70, 43,378.02 and 17,286.51 is: 23,855.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.70 : 43,378.02 = 17,286.51 : x
  2. Step 2: Convert to fraction form
    31,433.70/43,378.02 = 17,286.51/x
  3. Step 3: Cross multiply
    31,433.70x = 43,378.02 × 17,286.51
  4. Step 4: Simplify right side
    31,433.70x = 749,854,576.51
  5. Step 5: Solve for x
    x = 749,854,576.51/31,433.70
  6. Step 6: Final answer
    x = 23,855.12

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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.