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Finding the Fourth Proportional to 21,963.96, 32,946.86 and 6,381.59

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Solution

The fourth proportional to 21,963.96, 32,946.86 and 6,381.59 is: 9,572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.96 : 32,946.86 = 6,381.59 : x
  2. Step 2: Convert to fraction form
    21,963.96/32,946.86 = 6,381.59/x
  3. Step 3: Cross multiply
    21,963.96x = 32,946.86 × 6,381.59
  4. Step 4: Simplify right side
    21,963.96x = 210,253,155.67
  5. Step 5: Solve for x
    x = 210,253,155.67/21,963.96
  6. Step 6: Final answer
    x = 9,572.64

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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.