Home / 21,225.90-29,262.47-16,933.56

Finding the Fourth Proportional to 21,225.90, 29,262.47 and 16,933.56

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Solution

The fourth proportional to 21,225.90, 29,262.47 and 16,933.56 is: 23,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.90 : 29,262.47 = 16,933.56 : x
  2. Step 2: Convert to fraction form
    21,225.90/29,262.47 = 16,933.56/x
  3. Step 3: Cross multiply
    21,225.90x = 29,262.47 × 16,933.56
  4. Step 4: Simplify right side
    21,225.90x = 495,517,706.83
  5. Step 5: Solve for x
    x = 495,517,706.83/21,225.90
  6. Step 6: Final answer
    x = 23,344.96

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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.