Home / 30,568.58-42,119.96-28,464.81

Finding the Fourth Proportional to 30,568.58, 42,119.96 and 28,464.81

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Solution

The fourth proportional to 30,568.58, 42,119.96 and 28,464.81 is: 39,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568.58 : 42,119.96 = 28,464.81 : x
  2. Step 2: Convert to fraction form
    30,568.58/42,119.96 = 28,464.81/x
  3. Step 3: Cross multiply
    30,568.58x = 42,119.96 × 28,464.81
  4. Step 4: Simplify right side
    30,568.58x = 1,198,936,658.61
  5. Step 5: Solve for x
    x = 1,198,936,658.61/30,568.58
  6. Step 6: Final answer
    x = 39,221.21

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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.