Home / 20,023.50-30,037.68-6,172.50

Finding the Fourth Proportional to 20,023.50, 30,037.68 and 6,172.50

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Solution

The fourth proportional to 20,023.50, 30,037.68 and 6,172.50 is: 9,259.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.50 : 30,037.68 = 6,172.50 : x
  2. Step 2: Convert to fraction form
    20,023.50/30,037.68 = 6,172.50/x
  3. Step 3: Cross multiply
    20,023.50x = 30,037.68 × 6,172.50
  4. Step 4: Simplify right side
    20,023.50x = 185,407,579.80
  5. Step 5: Solve for x
    x = 185,407,579.80/20,023.50
  6. Step 6: Final answer
    x = 9,259.50

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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.