Home / 40,484.75-55,912.52-30,821.56

Finding the Fourth Proportional to 40,484.75, 55,912.52 and 30,821.56

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Solution

The fourth proportional to 40,484.75, 55,912.52 and 30,821.56 is: 42,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,484.75 : 55,912.52 = 30,821.56 : x
  2. Step 2: Convert to fraction form
    40,484.75/55,912.52 = 30,821.56/x
  3. Step 3: Cross multiply
    40,484.75x = 55,912.52 × 30,821.56
  4. Step 4: Simplify right side
    40,484.75x = 1,723,311,027.20
  5. Step 5: Solve for x
    x = 1,723,311,027.20/40,484.75
  6. Step 6: Final answer
    x = 42,566.92

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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.