Home / 23,166.71-31,970.11-12,556.34

Finding the Fourth Proportional to 23,166.71, 31,970.11 and 12,556.34

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Solution

The fourth proportional to 23,166.71, 31,970.11 and 12,556.34 is: 17,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,166.71 : 31,970.11 = 12,556.34 : x
  2. Step 2: Convert to fraction form
    23,166.71/31,970.11 = 12,556.34/x
  3. Step 3: Cross multiply
    23,166.71x = 31,970.11 × 12,556.34
  4. Step 4: Simplify right side
    23,166.71x = 401,427,619.53
  5. Step 5: Solve for x
    x = 401,427,619.53/23,166.71
  6. Step 6: Final answer
    x = 17,327.78

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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.