Home / 20,336.16-30,512.98-7,864.94

Finding the Fourth Proportional to 20,336.16, 30,512.98 and 7,864.94

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Solution

The fourth proportional to 20,336.16, 30,512.98 and 7,864.94 is: 11,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.16 : 30,512.98 = 7,864.94 : x
  2. Step 2: Convert to fraction form
    20,336.16/30,512.98 = 7,864.94/x
  3. Step 3: Cross multiply
    20,336.16x = 30,512.98 × 7,864.94
  4. Step 4: Simplify right side
    20,336.16x = 239,982,710.52
  5. Step 5: Solve for x
    x = 239,982,710.52/20,336.16
  6. Step 6: Final answer
    x = 11,800.79

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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.