Home / 30,972.28-46,452.42-8,780.32

Finding the Fourth Proportional to 30,972.28, 46,452.42 and 8,780.32

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Solution

The fourth proportional to 30,972.28, 46,452.42 and 8,780.32 is: 13,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.28 : 46,452.42 = 8,780.32 : x
  2. Step 2: Convert to fraction form
    30,972.28/46,452.42 = 8,780.32/x
  3. Step 3: Cross multiply
    30,972.28x = 46,452.42 × 8,780.32
  4. Step 4: Simplify right side
    30,972.28x = 407,867,112.37
  5. Step 5: Solve for x
    x = 407,867,112.37/30,972.28
  6. Step 6: Final answer
    x = 13,168.78

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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.