Home / 31,391.45-43,320.66-17,051.56

Finding the Fourth Proportional to 31,391.45, 43,320.66 and 17,051.56

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Solution

The fourth proportional to 31,391.45, 43,320.66 and 17,051.56 is: 23,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.45 : 43,320.66 = 17,051.56 : x
  2. Step 2: Convert to fraction form
    31,391.45/43,320.66 = 17,051.56/x
  3. Step 3: Cross multiply
    31,391.45x = 43,320.66 × 17,051.56
  4. Step 4: Simplify right side
    31,391.45x = 738,684,788.87
  5. Step 5: Solve for x
    x = 738,684,788.87/31,391.45
  6. Step 6: Final answer
    x = 23,531.40

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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.