Home / 20,210.82-30,297.48-10,328.31

Finding the Fourth Proportional to 20,210.82, 30,297.48 and 10,328.31

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Solution

The fourth proportional to 20,210.82, 30,297.48 and 10,328.31 is: 15,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.82 : 30,297.48 = 10,328.31 : x
  2. Step 2: Convert to fraction form
    20,210.82/30,297.48 = 10,328.31/x
  3. Step 3: Cross multiply
    20,210.82x = 30,297.48 × 10,328.31
  4. Step 4: Simplify right side
    20,210.82x = 312,921,765.66
  5. Step 5: Solve for x
    x = 312,921,765.66/20,210.82
  6. Step 6: Final answer
    x = 15,482.88

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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.