Home / 30,785.92-42,481.28-17,356.88

Finding the Fourth Proportional to 30,785.92, 42,481.28 and 17,356.88

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Solution

The fourth proportional to 30,785.92, 42,481.28 and 17,356.88 is: 23,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785.92 : 42,481.28 = 17,356.88 : x
  2. Step 2: Convert to fraction form
    30,785.92/42,481.28 = 17,356.88/x
  3. Step 3: Cross multiply
    30,785.92x = 42,481.28 × 17,356.88
  4. Step 4: Simplify right side
    30,785.92x = 737,342,479.21
  5. Step 5: Solve for x
    x = 737,342,479.21/30,785.92
  6. Step 6: Final answer
    x = 23,950.64

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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.