Home / 21,961.04-32,941.60-6,378.80

Finding the Fourth Proportional to 21,961.04, 32,941.60 and 6,378.80

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Solution

The fourth proportional to 21,961.04, 32,941.60 and 6,378.80 is: 9,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.04 : 32,941.60 = 6,378.80 : x
  2. Step 2: Convert to fraction form
    21,961.04/32,941.60 = 6,378.80/x
  3. Step 3: Cross multiply
    21,961.04x = 32,941.60 × 6,378.80
  4. Step 4: Simplify right side
    21,961.04x = 210,127,878.08
  5. Step 5: Solve for x
    x = 210,127,878.08/21,961.04
  6. Step 6: Final answer
    x = 9,568.21

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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.