Home / 20,963.16-31,439.46-12,532.08

Finding the Fourth Proportional to 20,963.16, 31,439.46 and 12,532.08

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Solution

The fourth proportional to 20,963.16, 31,439.46 and 12,532.08 is: 18,794.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.16 : 31,439.46 = 12,532.08 : x
  2. Step 2: Convert to fraction form
    20,963.16/31,439.46 = 12,532.08/x
  3. Step 3: Cross multiply
    20,963.16x = 31,439.46 × 12,532.08
  4. Step 4: Simplify right side
    20,963.16x = 394,001,827.88
  5. Step 5: Solve for x
    x = 394,001,827.88/20,963.16
  6. Step 6: Final answer
    x = 18,794.96

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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.