Home / 20,219.62-30,326.01-5,427.31

Finding the Fourth Proportional to 20,219.62, 30,326.01 and 5,427.31

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Solution

The fourth proportional to 20,219.62, 30,326.01 and 5,427.31 is: 8,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.62 : 30,326.01 = 5,427.31 : x
  2. Step 2: Convert to fraction form
    20,219.62/30,326.01 = 5,427.31/x
  3. Step 3: Cross multiply
    20,219.62x = 30,326.01 × 5,427.31
  4. Step 4: Simplify right side
    20,219.62x = 164,588,657.33
  5. Step 5: Solve for x
    x = 164,588,657.33/20,219.62
  6. Step 6: Final answer
    x = 8,140.05

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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.