Home / 21,272.60-29,356.44-11,713.60

Finding the Fourth Proportional to 21,272.60, 29,356.44 and 11,713.60

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Solution

The fourth proportional to 21,272.60, 29,356.44 and 11,713.60 is: 16,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.60 : 29,356.44 = 11,713.60 : x
  2. Step 2: Convert to fraction form
    21,272.60/29,356.44 = 11,713.60/x
  3. Step 3: Cross multiply
    21,272.60x = 29,356.44 × 11,713.60
  4. Step 4: Simplify right side
    21,272.60x = 343,869,595.58
  5. Step 5: Solve for x
    x = 343,869,595.58/21,272.60
  6. Step 6: Final answer
    x = 16,164.91

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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.