Home / 34,200.45-51,331.05-20,142.90

Finding the Fourth Proportional to 34,200.45, 51,331.05 and 20,142.90

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Solution

The fourth proportional to 34,200.45, 51,331.05 and 20,142.90 is: 30,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,200.45 : 51,331.05 = 20,142.90 : x
  2. Step 2: Convert to fraction form
    34,200.45/51,331.05 = 20,142.90/x
  3. Step 3: Cross multiply
    34,200.45x = 51,331.05 × 20,142.90
  4. Step 4: Simplify right side
    34,200.45x = 1,033,956,207.05
  5. Step 5: Solve for x
    x = 1,033,956,207.05/34,200.45
  6. Step 6: Final answer
    x = 30,232.24

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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.