Home / 21,195.05-29,248.16-11,634.71

Finding the Fourth Proportional to 21,195.05, 29,248.16 and 11,634.71

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Solution

The fourth proportional to 21,195.05, 29,248.16 and 11,634.71 is: 16,055.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.05 : 29,248.16 = 11,634.71 : x
  2. Step 2: Convert to fraction form
    21,195.05/29,248.16 = 11,634.71/x
  3. Step 3: Cross multiply
    21,195.05x = 29,248.16 × 11,634.71
  4. Step 4: Simplify right side
    21,195.05x = 340,293,655.22
  5. Step 5: Solve for x
    x = 340,293,655.22/21,195.05
  6. Step 6: Final answer
    x = 16,055.34

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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.