Home / 21,739.80-32,757.78-17,877.57

Finding the Fourth Proportional to 21,739.80, 32,757.78 and 17,877.57

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Solution

The fourth proportional to 21,739.80, 32,757.78 and 17,877.57 is: 26,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.80 : 32,757.78 = 17,877.57 : x
  2. Step 2: Convert to fraction form
    21,739.80/32,757.78 = 17,877.57/x
  3. Step 3: Cross multiply
    21,739.80x = 32,757.78 × 17,877.57
  4. Step 4: Simplify right side
    21,739.80x = 585,629,570.16
  5. Step 5: Solve for x
    x = 585,629,570.16/21,739.80
  6. Step 6: Final answer
    x = 26,938.13

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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.