Home / 21,225.72-29,262.21-16,933.38

Finding the Fourth Proportional to 21,225.72, 29,262.21 and 16,933.38

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Solution

The fourth proportional to 21,225.72, 29,262.21 and 16,933.38 is: 23,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.72 : 29,262.21 = 16,933.38 : x
  2. Step 2: Convert to fraction form
    21,225.72/29,262.21 = 16,933.38/x
  3. Step 3: Cross multiply
    21,225.72x = 29,262.21 × 16,933.38
  4. Step 4: Simplify right side
    21,225.72x = 495,508,121.57
  5. Step 5: Solve for x
    x = 495,508,121.57/21,225.72
  6. Step 6: Final answer
    x = 23,344.70

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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.