Home / 21,393.40-29,524.20-11,962.60

Finding the Fourth Proportional to 21,393.40, 29,524.20 and 11,962.60

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Solution

The fourth proportional to 21,393.40, 29,524.20 and 11,962.60 is: 16,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.40 : 29,524.20 = 11,962.60 : x
  2. Step 2: Convert to fraction form
    21,393.40/29,524.20 = 11,962.60/x
  3. Step 3: Cross multiply
    21,393.40x = 29,524.20 × 11,962.60
  4. Step 4: Simplify right side
    21,393.40x = 353,186,194.92
  5. Step 5: Solve for x
    x = 353,186,194.92/21,393.40
  6. Step 6: Final answer
    x = 16,509.12

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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.