Home / 23,091.05-31,865.65-12,480.68

Finding the Fourth Proportional to 23,091.05, 31,865.65 and 12,480.68

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Solution

The fourth proportional to 23,091.05, 31,865.65 and 12,480.68 is: 17,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,091.05 : 31,865.65 = 12,480.68 : x
  2. Step 2: Convert to fraction form
    23,091.05/31,865.65 = 12,480.68/x
  3. Step 3: Cross multiply
    23,091.05x = 31,865.65 × 12,480.68
  4. Step 4: Simplify right side
    23,091.05x = 397,705,029.10
  5. Step 5: Solve for x
    x = 397,705,029.10/23,091.05
  6. Step 6: Final answer
    x = 17,223.34

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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.