Home / 21,486.76-29,654.44-12,055.26

Finding the Fourth Proportional to 21,486.76, 29,654.44 and 12,055.26

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Solution

The fourth proportional to 21,486.76, 29,654.44 and 12,055.26 is: 16,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.76 : 29,654.44 = 12,055.26 : x
  2. Step 2: Convert to fraction form
    21,486.76/29,654.44 = 12,055.26/x
  3. Step 3: Cross multiply
    21,486.76x = 29,654.44 × 12,055.26
  4. Step 4: Simplify right side
    21,486.76x = 357,491,984.35
  5. Step 5: Solve for x
    x = 357,491,984.35/21,486.76
  6. Step 6: Final answer
    x = 16,637.78

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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.