Home / 36,420.53-54,638.62-20,633.02

Finding the Fourth Proportional to 36,420.53, 54,638.62 and 20,633.02

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Solution

The fourth proportional to 36,420.53, 54,638.62 and 20,633.02 is: 30,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.53 : 54,638.62 = 20,633.02 : x
  2. Step 2: Convert to fraction form
    36,420.53/54,638.62 = 20,633.02/x
  3. Step 3: Cross multiply
    36,420.53x = 54,638.62 × 20,633.02
  4. Step 4: Simplify right side
    36,420.53x = 1,127,359,551.05
  5. Step 5: Solve for x
    x = 1,127,359,551.05/36,420.53
  6. Step 6: Final answer
    x = 30,953.96

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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.