Home / 20,843.51-31,242.33-10,297.92

Finding the Fourth Proportional to 20,843.51, 31,242.33 and 10,297.92

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Solution

The fourth proportional to 20,843.51, 31,242.33 and 10,297.92 is: 15,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.51 : 31,242.33 = 10,297.92 : x
  2. Step 2: Convert to fraction form
    20,843.51/31,242.33 = 10,297.92/x
  3. Step 3: Cross multiply
    20,843.51x = 31,242.33 × 10,297.92
  4. Step 4: Simplify right side
    20,843.51x = 321,731,014.95
  5. Step 5: Solve for x
    x = 321,731,014.95/20,843.51
  6. Step 6: Final answer
    x = 15,435.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.