Home / 35,585.20-49,102.32-20,271.88

Finding the Fourth Proportional to 35,585.20, 49,102.32 and 20,271.88

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Solution

The fourth proportional to 35,585.20, 49,102.32 and 20,271.88 is: 27,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,585.20 : 49,102.32 = 20,271.88 : x
  2. Step 2: Convert to fraction form
    35,585.20/49,102.32 = 20,271.88/x
  3. Step 3: Cross multiply
    35,585.20x = 49,102.32 × 20,271.88
  4. Step 4: Simplify right side
    35,585.20x = 995,396,338.76
  5. Step 5: Solve for x
    x = 995,396,338.76/35,585.20
  6. Step 6: Final answer
    x = 27,972.20

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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.