Home / 31,485.80-43,450.98-17,146.06

Finding the Fourth Proportional to 31,485.80, 43,450.98 and 17,146.06

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Solution

The fourth proportional to 31,485.80, 43,450.98 and 17,146.06 is: 23,661.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.80 : 43,450.98 = 17,146.06 : x
  2. Step 2: Convert to fraction form
    31,485.80/43,450.98 = 17,146.06/x
  3. Step 3: Cross multiply
    31,485.80x = 43,450.98 × 17,146.06
  4. Step 4: Simplify right side
    31,485.80x = 745,012,937.21
  5. Step 5: Solve for x
    x = 745,012,937.21/31,485.80
  6. Step 6: Final answer
    x = 23,661.87

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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.