Home / 21,055.14-29,042.82-13,493.66

Finding the Fourth Proportional to 21,055.14, 29,042.82 and 13,493.66

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Solution

The fourth proportional to 21,055.14, 29,042.82 and 13,493.66 is: 18,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.14 : 29,042.82 = 13,493.66 : x
  2. Step 2: Convert to fraction form
    21,055.14/29,042.82 = 13,493.66/x
  3. Step 3: Cross multiply
    21,055.14x = 29,042.82 × 13,493.66
  4. Step 4: Simplify right side
    21,055.14x = 391,893,793.31
  5. Step 5: Solve for x
    x = 391,893,793.31/21,055.14
  6. Step 6: Final answer
    x = 18,612.74

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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.