Home / 35,530.32-49,016.46-20,419.50

Finding the Fourth Proportional to 35,530.32, 49,016.46 and 20,419.50

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Solution

The fourth proportional to 35,530.32, 49,016.46 and 20,419.50 is: 28,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,530.32 : 49,016.46 = 20,419.50 : x
  2. Step 2: Convert to fraction form
    35,530.32/49,016.46 = 20,419.50/x
  3. Step 3: Cross multiply
    35,530.32x = 49,016.46 × 20,419.50
  4. Step 4: Simplify right side
    35,530.32x = 1,000,891,604.97
  5. Step 5: Solve for x
    x = 1,000,891,604.97/35,530.32
  6. Step 6: Final answer
    x = 28,170.07

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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.