Home / 20,185.76-30,276.72-6,332.32

Finding the Fourth Proportional to 20,185.76, 30,276.72 and 6,332.32

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Solution

The fourth proportional to 20,185.76, 30,276.72 and 6,332.32 is: 9,497.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.76 : 30,276.72 = 6,332.32 : x
  2. Step 2: Convert to fraction form
    20,185.76/30,276.72 = 6,332.32/x
  3. Step 3: Cross multiply
    20,185.76x = 30,276.72 × 6,332.32
  4. Step 4: Simplify right side
    20,185.76x = 191,721,879.59
  5. Step 5: Solve for x
    x = 191,721,879.59/20,185.76
  6. Step 6: Final answer
    x = 9,497.88

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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.