Home / 21,923.97-32,877.88-7,880.25

Finding the Fourth Proportional to 21,923.97, 32,877.88 and 7,880.25

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Solution

The fourth proportional to 21,923.97, 32,877.88 and 7,880.25 is: 11,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.97 : 32,877.88 = 7,880.25 : x
  2. Step 2: Convert to fraction form
    21,923.97/32,877.88 = 7,880.25/x
  3. Step 3: Cross multiply
    21,923.97x = 32,877.88 × 7,880.25
  4. Step 4: Simplify right side
    21,923.97x = 259,085,913.87
  5. Step 5: Solve for x
    x = 259,085,913.87/21,923.97
  6. Step 6: Final answer
    x = 11,817.47

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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.