Home / 21,223.64-29,289.54-11,792.18

Finding the Fourth Proportional to 21,223.64, 29,289.54 and 11,792.18

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Solution

The fourth proportional to 21,223.64, 29,289.54 and 11,792.18 is: 16,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.64 : 29,289.54 = 11,792.18 : x
  2. Step 2: Convert to fraction form
    21,223.64/29,289.54 = 11,792.18/x
  3. Step 3: Cross multiply
    21,223.64x = 29,289.54 × 11,792.18
  4. Step 4: Simplify right side
    21,223.64x = 345,387,527.80
  5. Step 5: Solve for x
    x = 345,387,527.80/21,223.64
  6. Step 6: Final answer
    x = 16,273.72

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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.