Home / 20,559.36-30,839.12-4,976.96

Finding the Fourth Proportional to 20,559.36, 30,839.12 and 4,976.96

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Solution

The fourth proportional to 20,559.36, 30,839.12 and 4,976.96 is: 7,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.36 : 30,839.12 = 4,976.96 : x
  2. Step 2: Convert to fraction form
    20,559.36/30,839.12 = 4,976.96/x
  3. Step 3: Cross multiply
    20,559.36x = 30,839.12 × 4,976.96
  4. Step 4: Simplify right side
    20,559.36x = 153,485,066.68
  5. Step 5: Solve for x
    x = 153,485,066.68/20,559.36
  6. Step 6: Final answer
    x = 7,465.46

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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.