Home / 20,963.62-31,445.46-6,172.71

Finding the Fourth Proportional to 20,963.62, 31,445.46 and 6,172.71

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Solution

The fourth proportional to 20,963.62, 31,445.46 and 6,172.71 is: 9,259.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.62 : 31,445.46 = 6,172.71 : x
  2. Step 2: Convert to fraction form
    20,963.62/31,445.46 = 6,172.71/x
  3. Step 3: Cross multiply
    20,963.62x = 31,445.46 × 6,172.71
  4. Step 4: Simplify right side
    20,963.62x = 194,103,705.40
  5. Step 5: Solve for x
    x = 194,103,705.40/20,963.62
  6. Step 6: Final answer
    x = 9,259.07

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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.