Home / 20,433.56-30,652.11-5,642.48

Finding the Fourth Proportional to 20,433.56, 30,652.11 and 5,642.48

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Solution

The fourth proportional to 20,433.56, 30,652.11 and 5,642.48 is: 8,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.56 : 30,652.11 = 5,642.48 : x
  2. Step 2: Convert to fraction form
    20,433.56/30,652.11 = 5,642.48/x
  3. Step 3: Cross multiply
    20,433.56x = 30,652.11 × 5,642.48
  4. Step 4: Simplify right side
    20,433.56x = 172,953,917.63
  5. Step 5: Solve for x
    x = 172,953,917.63/20,433.56
  6. Step 6: Final answer
    x = 8,464.21

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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.