Home / 31,433.82-43,378.80-17,287.56

Finding the Fourth Proportional to 31,433.82, 43,378.80 and 17,287.56

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Solution

The fourth proportional to 31,433.82, 43,378.80 and 17,287.56 is: 23,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.82 : 43,378.80 = 17,287.56 : x
  2. Step 2: Convert to fraction form
    31,433.82/43,378.80 = 17,287.56/x
  3. Step 3: Cross multiply
    31,433.82x = 43,378.80 × 17,287.56
  4. Step 4: Simplify right side
    31,433.82x = 749,913,607.73
  5. Step 5: Solve for x
    x = 749,913,607.73/31,433.82
  6. Step 6: Final answer
    x = 23,856.90

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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.