Home / 20,155.87-30,234.48-7,008.35

Finding the Fourth Proportional to 20,155.87, 30,234.48 and 7,008.35

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Solution

The fourth proportional to 20,155.87, 30,234.48 and 7,008.35 is: 10,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.87 : 30,234.48 = 7,008.35 : x
  2. Step 2: Convert to fraction form
    20,155.87/30,234.48 = 7,008.35/x
  3. Step 3: Cross multiply
    20,155.87x = 30,234.48 × 7,008.35
  4. Step 4: Simplify right side
    20,155.87x = 211,893,782.87
  5. Step 5: Solve for x
    x = 211,893,782.87/20,155.87
  6. Step 6: Final answer
    x = 10,512.76

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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.