Home / 31,285.29-43,173.74-16,945.15

Finding the Fourth Proportional to 31,285.29, 43,173.74 and 16,945.15

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Solution

The fourth proportional to 31,285.29, 43,173.74 and 16,945.15 is: 23,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.29 : 43,173.74 = 16,945.15 : x
  2. Step 2: Convert to fraction form
    31,285.29/43,173.74 = 16,945.15/x
  3. Step 3: Cross multiply
    31,285.29x = 43,173.74 × 16,945.15
  4. Step 4: Simplify right side
    31,285.29x = 731,585,515.74
  5. Step 5: Solve for x
    x = 731,585,515.74/31,285.29
  6. Step 6: Final answer
    x = 23,384.33

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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.