Home / 35,765.20-49,363.60-20,660.32

Finding the Fourth Proportional to 35,765.20, 49,363.60 and 20,660.32

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Solution

The fourth proportional to 35,765.20, 49,363.60 and 20,660.32 is: 28,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,765.20 : 49,363.60 = 20,660.32 : x
  2. Step 2: Convert to fraction form
    35,765.20/49,363.60 = 20,660.32/x
  3. Step 3: Cross multiply
    35,765.20x = 49,363.60 × 20,660.32
  4. Step 4: Simplify right side
    35,765.20x = 1,019,867,772.35
  5. Step 5: Solve for x
    x = 1,019,867,772.35/35,765.20
  6. Step 6: Final answer
    x = 28,515.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.