Home / 21,907.88-30,197.45-17,119.50

Finding the Fourth Proportional to 21,907.88, 30,197.45 and 17,119.50

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Solution

The fourth proportional to 21,907.88, 30,197.45 and 17,119.50 is: 23,597.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907.88 : 30,197.45 = 17,119.50 : x
  2. Step 2: Convert to fraction form
    21,907.88/30,197.45 = 17,119.50/x
  3. Step 3: Cross multiply
    21,907.88x = 30,197.45 × 17,119.50
  4. Step 4: Simplify right side
    21,907.88x = 516,965,207.53
  5. Step 5: Solve for x
    x = 516,965,207.53/21,907.88
  6. Step 6: Final answer
    x = 23,597.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.