Home / 20,139.22-30,206.52-5,349.30

Finding the Fourth Proportional to 20,139.22, 30,206.52 and 5,349.30

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Solution

The fourth proportional to 20,139.22, 30,206.52 and 5,349.30 is: 8,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139.22 : 30,206.52 = 5,349.30 : x
  2. Step 2: Convert to fraction form
    20,139.22/30,206.52 = 5,349.30/x
  3. Step 3: Cross multiply
    20,139.22x = 30,206.52 × 5,349.30
  4. Step 4: Simplify right side
    20,139.22x = 161,583,737.44
  5. Step 5: Solve for x
    x = 161,583,737.44/20,139.22
  6. Step 6: Final answer
    x = 8,023.34

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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.