Home / 31,778.54-43,852.64-18,348.99

Finding the Fourth Proportional to 31,778.54, 43,852.64 and 18,348.99

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Solution

The fourth proportional to 31,778.54, 43,852.64 and 18,348.99 is: 25,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.54 : 43,852.64 = 18,348.99 : x
  2. Step 2: Convert to fraction form
    31,778.54/43,852.64 = 18,348.99/x
  3. Step 3: Cross multiply
    31,778.54x = 43,852.64 × 18,348.99
  4. Step 4: Simplify right side
    31,778.54x = 804,651,561.09
  5. Step 5: Solve for x
    x = 804,651,561.09/31,778.54
  6. Step 6: Final answer
    x = 25,320.60

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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.