Home / 20,025.45-30,037.10-10,164.47

Finding the Fourth Proportional to 20,025.45, 30,037.10 and 10,164.47

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Solution

The fourth proportional to 20,025.45, 30,037.10 and 10,164.47 is: 15,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.45 : 30,037.10 = 10,164.47 : x
  2. Step 2: Convert to fraction form
    20,025.45/30,037.10 = 10,164.47/x
  3. Step 3: Cross multiply
    20,025.45x = 30,037.10 × 10,164.47
  4. Step 4: Simplify right side
    20,025.45x = 305,311,000.83
  5. Step 5: Solve for x
    x = 305,311,000.83/20,025.45
  6. Step 6: Final answer
    x = 15,246.15

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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.