Home / 31,219.71-43,083.54-17,072.25

Finding the Fourth Proportional to 31,219.71, 43,083.54 and 17,072.25

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Solution

The fourth proportional to 31,219.71, 43,083.54 and 17,072.25 is: 23,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.71 : 43,083.54 = 17,072.25 : x
  2. Step 2: Convert to fraction form
    31,219.71/43,083.54 = 17,072.25/x
  3. Step 3: Cross multiply
    31,219.71x = 43,083.54 × 17,072.25
  4. Step 4: Simplify right side
    31,219.71x = 735,532,965.77
  5. Step 5: Solve for x
    x = 735,532,965.77/31,219.71
  6. Step 6: Final answer
    x = 23,559.89

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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.