Home / 36,427.56-54,649.10-20,640.15

Finding the Fourth Proportional to 36,427.56, 54,649.10 and 20,640.15

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Solution

The fourth proportional to 36,427.56, 54,649.10 and 20,640.15 is: 30,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,427.56 : 54,649.10 = 20,640.15 : x
  2. Step 2: Convert to fraction form
    36,427.56/54,649.10 = 20,640.15/x
  3. Step 3: Cross multiply
    36,427.56x = 54,649.10 × 20,640.15
  4. Step 4: Simplify right side
    36,427.56x = 1,127,965,621.37
  5. Step 5: Solve for x
    x = 1,127,965,621.37/36,427.56
  6. Step 6: Final answer
    x = 30,964.62

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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.