Home / 23,167.12-31,970.24-12,556.66

Finding the Fourth Proportional to 23,167.12, 31,970.24 and 12,556.66

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Solution

The fourth proportional to 23,167.12, 31,970.24 and 12,556.66 is: 17,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,167.12 : 31,970.24 = 12,556.66 : x
  2. Step 2: Convert to fraction form
    23,167.12/31,970.24 = 12,556.66/x
  3. Step 3: Cross multiply
    23,167.12x = 31,970.24 × 12,556.66
  4. Step 4: Simplify right side
    23,167.12x = 401,439,433.80
  5. Step 5: Solve for x
    x = 401,439,433.80/23,167.12
  6. Step 6: Final answer
    x = 17,327.98

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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.