Home / 20,632.32-28,476.36-12,253.68

Finding the Fourth Proportional to 20,632.32, 28,476.36 and 12,253.68

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Solution

The fourth proportional to 20,632.32, 28,476.36 and 12,253.68 is: 16,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.32 : 28,476.36 = 12,253.68 : x
  2. Step 2: Convert to fraction form
    20,632.32/28,476.36 = 12,253.68/x
  3. Step 3: Cross multiply
    20,632.32x = 28,476.36 × 12,253.68
  4. Step 4: Simplify right side
    20,632.32x = 348,940,203.00
  5. Step 5: Solve for x
    x = 348,940,203.00/20,632.32
  6. Step 6: Final answer
    x = 16,912.31

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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.