Home / 21,188.25-29,270.28-16,933.85

Finding the Fourth Proportional to 21,188.25, 29,270.28 and 16,933.85

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Solution

The fourth proportional to 21,188.25, 29,270.28 and 16,933.85 is: 23,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.25 : 29,270.28 = 16,933.85 : x
  2. Step 2: Convert to fraction form
    21,188.25/29,270.28 = 16,933.85/x
  3. Step 3: Cross multiply
    21,188.25x = 29,270.28 × 16,933.85
  4. Step 4: Simplify right side
    21,188.25x = 495,658,530.98
  5. Step 5: Solve for x
    x = 495,658,530.98/21,188.25
  6. Step 6: Final answer
    x = 23,393.08

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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.