Home / 30,022.12-41,447.46-20,604.52

Finding the Fourth Proportional to 30,022.12, 41,447.46 and 20,604.52

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Solution

The fourth proportional to 30,022.12, 41,447.46 and 20,604.52 is: 28,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022.12 : 41,447.46 = 20,604.52 : x
  2. Step 2: Convert to fraction form
    30,022.12/41,447.46 = 20,604.52/x
  3. Step 3: Cross multiply
    30,022.12x = 41,447.46 × 20,604.52
  4. Step 4: Simplify right side
    30,022.12x = 854,005,018.52
  5. Step 5: Solve for x
    x = 854,005,018.52/30,022.12
  6. Step 6: Final answer
    x = 28,445.86

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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.