Home / 31,512.99-43,487.37-17,172.95

Finding the Fourth Proportional to 31,512.99, 43,487.37 and 17,172.95

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Solution

The fourth proportional to 31,512.99, 43,487.37 and 17,172.95 is: 23,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.99 : 43,487.37 = 17,172.95 : x
  2. Step 2: Convert to fraction form
    31,512.99/43,487.37 = 17,172.95/x
  3. Step 3: Cross multiply
    31,512.99x = 43,487.37 × 17,172.95
  4. Step 4: Simplify right side
    31,512.99x = 746,806,430.64
  5. Step 5: Solve for x
    x = 746,806,430.64/31,512.99
  6. Step 6: Final answer
    x = 23,698.37

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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.