Home / 49,015.20-73,465.20-20,935.20

Finding the Fourth Proportional to 49,015.20, 73,465.20 and 20,935.20

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Solution

The fourth proportional to 49,015.20, 73,465.20 and 20,935.20 is: 31,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,015.20 : 73,465.20 = 20,935.20 : x
  2. Step 2: Convert to fraction form
    49,015.20/73,465.20 = 20,935.20/x
  3. Step 3: Cross multiply
    49,015.20x = 73,465.20 × 20,935.20
  4. Step 4: Simplify right side
    49,015.20x = 1,538,008,655.04
  5. Step 5: Solve for x
    x = 1,538,008,655.04/49,015.20
  6. Step 6: Final answer
    x = 31,378.20

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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.