Home / 21,165.41-29,208.60-11,606.17

Finding the Fourth Proportional to 21,165.41, 29,208.60 and 11,606.17

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Solution

The fourth proportional to 21,165.41, 29,208.60 and 11,606.17 is: 16,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.41 : 29,208.60 = 11,606.17 : x
  2. Step 2: Convert to fraction form
    21,165.41/29,208.60 = 11,606.17/x
  3. Step 3: Cross multiply
    21,165.41x = 29,208.60 × 11,606.17
  4. Step 4: Simplify right side
    21,165.41x = 338,999,977.06
  5. Step 5: Solve for x
    x = 338,999,977.06/21,165.41
  6. Step 6: Final answer
    x = 16,016.70

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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.