Home / 31,403.79-43,336.74-17,256.33

Finding the Fourth Proportional to 31,403.79, 43,336.74 and 17,256.33

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Solution

The fourth proportional to 31,403.79, 43,336.74 and 17,256.33 is: 23,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.79 : 43,336.74 = 17,256.33 : x
  2. Step 2: Convert to fraction form
    31,403.79/43,336.74 = 17,256.33/x
  3. Step 3: Cross multiply
    31,403.79x = 43,336.74 × 17,256.33
  4. Step 4: Simplify right side
    31,403.79x = 747,833,086.56
  5. Step 5: Solve for x
    x = 747,833,086.56/31,403.79
  6. Step 6: Final answer
    x = 23,813.47

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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.