Home / 21,272.25-29,356.65-11,841.42

Finding the Fourth Proportional to 21,272.25, 29,356.65 and 11,841.42

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Solution

The fourth proportional to 21,272.25, 29,356.65 and 11,841.42 is: 16,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.25 : 29,356.65 = 11,841.42 : x
  2. Step 2: Convert to fraction form
    21,272.25/29,356.65 = 11,841.42/x
  3. Step 3: Cross multiply
    21,272.25x = 29,356.65 × 11,841.42
  4. Step 4: Simplify right side
    21,272.25x = 347,624,422.44
  5. Step 5: Solve for x
    x = 347,624,422.44/21,272.25
  6. Step 6: Final answer
    x = 16,341.69

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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.