Home / 23,167.17-31,970.79-12,556.80

Finding the Fourth Proportional to 23,167.17, 31,970.79 and 12,556.80

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Solution

The fourth proportional to 23,167.17, 31,970.79 and 12,556.80 is: 17,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,167.17 : 31,970.79 = 12,556.80 : x
  2. Step 2: Convert to fraction form
    23,167.17/31,970.79 = 12,556.80/x
  3. Step 3: Cross multiply
    23,167.17x = 31,970.79 × 12,556.80
  4. Step 4: Simplify right side
    23,167.17x = 401,450,815.87
  5. Step 5: Solve for x
    x = 401,450,815.87/23,167.17
  6. Step 6: Final answer
    x = 17,328.44

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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.