Home / 20,583.20-30,856.32-7,432.48

Finding the Fourth Proportional to 20,583.20, 30,856.32 and 7,432.48

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Solution

The fourth proportional to 20,583.20, 30,856.32 and 7,432.48 is: 11,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.20 : 30,856.32 = 7,432.48 : x
  2. Step 2: Convert to fraction form
    20,583.20/30,856.32 = 7,432.48/x
  3. Step 3: Cross multiply
    20,583.20x = 30,856.32 × 7,432.48
  4. Step 4: Simplify right side
    20,583.20x = 229,338,981.27
  5. Step 5: Solve for x
    x = 229,338,981.27/20,583.20
  6. Step 6: Final answer
    x = 11,142.05

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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.