Home / 21,092.40-31,644.07-11,223.56

Finding the Fourth Proportional to 21,092.40, 31,644.07 and 11,223.56

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Solution

The fourth proportional to 21,092.40, 31,644.07 and 11,223.56 is: 16,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.40 : 31,644.07 = 11,223.56 : x
  2. Step 2: Convert to fraction form
    21,092.40/31,644.07 = 11,223.56/x
  3. Step 3: Cross multiply
    21,092.40x = 31,644.07 × 11,223.56
  4. Step 4: Simplify right side
    21,092.40x = 355,159,169.34
  5. Step 5: Solve for x
    x = 355,159,169.34/21,092.40
  6. Step 6: Final answer
    x = 16,838.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.