Home / 36,420.64-50,261.43-20,505.67

Finding the Fourth Proportional to 36,420.64, 50,261.43 and 20,505.67

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Solution

The fourth proportional to 36,420.64, 50,261.43 and 20,505.67 is: 28,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.64 : 50,261.43 = 20,505.67 : x
  2. Step 2: Convert to fraction form
    36,420.64/50,261.43 = 20,505.67/x
  3. Step 3: Cross multiply
    36,420.64x = 50,261.43 × 20,505.67
  4. Step 4: Simplify right side
    36,420.64x = 1,030,644,297.31
  5. Step 5: Solve for x
    x = 1,030,644,297.31/36,420.64
  6. Step 6: Final answer
    x = 28,298.36

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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.