Home / 67,007.28-100,511.72-20,262.16

Finding the Fourth Proportional to 67,007.28, 100,511.72 and 20,262.16

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Solution

The fourth proportional to 67,007.28, 100,511.72 and 20,262.16 is: 30,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,007.28 : 100,511.72 = 20,262.16 : x
  2. Step 2: Convert to fraction form
    67,007.28/100,511.72 = 20,262.16/x
  3. Step 3: Cross multiply
    67,007.28x = 100,511.72 × 20,262.16
  4. Step 4: Simplify right side
    67,007.28x = 2,036,584,552.52
  5. Step 5: Solve for x
    x = 2,036,584,552.52/67,007.28
  6. Step 6: Final answer
    x = 30,393.48

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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.