Home / 22,556.43-31,127.93-12,485.57

Finding the Fourth Proportional to 22,556.43, 31,127.93 and 12,485.57

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Solution

The fourth proportional to 22,556.43, 31,127.93 and 12,485.57 is: 17,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,556.43 : 31,127.93 = 12,485.57 : x
  2. Step 2: Convert to fraction form
    22,556.43/31,127.93 = 12,485.57/x
  3. Step 3: Cross multiply
    22,556.43x = 31,127.93 × 12,485.57
  4. Step 4: Simplify right side
    22,556.43x = 388,649,824.54
  5. Step 5: Solve for x
    x = 388,649,824.54/22,556.43
  6. Step 6: Final answer
    x = 17,230.11

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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.