Home / 21,322.25-29,425.50-11,892.63

Finding the Fourth Proportional to 21,322.25, 29,425.50 and 11,892.63

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Solution

The fourth proportional to 21,322.25, 29,425.50 and 11,892.63 is: 16,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.25 : 29,425.50 = 11,892.63 : x
  2. Step 2: Convert to fraction form
    21,322.25/29,425.50 = 11,892.63/x
  3. Step 3: Cross multiply
    21,322.25x = 29,425.50 × 11,892.63
  4. Step 4: Simplify right side
    21,322.25x = 349,946,584.07
  5. Step 5: Solve for x
    x = 349,946,584.07/21,322.25
  6. Step 6: Final answer
    x = 16,412.28

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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.