Home / 23,090.70-31,865.20-12,480.33

Finding the Fourth Proportional to 23,090.70, 31,865.20 and 12,480.33

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Solution

The fourth proportional to 23,090.70, 31,865.20 and 12,480.33 is: 17,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,090.70 : 31,865.20 = 12,480.33 : x
  2. Step 2: Convert to fraction form
    23,090.70/31,865.20 = 12,480.33/x
  3. Step 3: Cross multiply
    23,090.70x = 31,865.20 × 12,480.33
  4. Step 4: Simplify right side
    23,090.70x = 397,688,120.57
  5. Step 5: Solve for x
    x = 397,688,120.57/23,090.70
  6. Step 6: Final answer
    x = 17,222.87

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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.