Home / 30,672.32-42,324.87-17,928.48

Finding the Fourth Proportional to 30,672.32, 42,324.87 and 17,928.48

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Solution

The fourth proportional to 30,672.32, 42,324.87 and 17,928.48 is: 24,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.32 : 42,324.87 = 17,928.48 : x
  2. Step 2: Convert to fraction form
    30,672.32/42,324.87 = 17,928.48/x
  3. Step 3: Cross multiply
    30,672.32x = 42,324.87 × 17,928.48
  4. Step 4: Simplify right side
    30,672.32x = 758,820,585.30
  5. Step 5: Solve for x
    x = 758,820,585.30/30,672.32
  6. Step 6: Final answer
    x = 24,739.59

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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.