Home / 21,739.87-32,757.88-17,877.64

Finding the Fourth Proportional to 21,739.87, 32,757.88 and 17,877.64

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Solution

The fourth proportional to 21,739.87, 32,757.88 and 17,877.64 is: 26,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.87 : 32,757.88 = 17,877.64 : x
  2. Step 2: Convert to fraction form
    21,739.87/32,757.88 = 17,877.64/x
  3. Step 3: Cross multiply
    21,739.87x = 32,757.88 × 17,877.64
  4. Step 4: Simplify right side
    21,739.87x = 585,633,543.73
  5. Step 5: Solve for x
    x = 585,633,543.73/21,739.87
  6. Step 6: Final answer
    x = 26,938.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.