Home / 21,053.66-29,058.92-13,884.87

Finding the Fourth Proportional to 21,053.66, 29,058.92 and 13,884.87

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Solution

The fourth proportional to 21,053.66, 29,058.92 and 13,884.87 is: 19,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.66 : 29,058.92 = 13,884.87 : x
  2. Step 2: Convert to fraction form
    21,053.66/29,058.92 = 13,884.87/x
  3. Step 3: Cross multiply
    21,053.66x = 29,058.92 × 13,884.87
  4. Step 4: Simplify right side
    21,053.66x = 403,479,326.54
  5. Step 5: Solve for x
    x = 403,479,326.54/21,053.66
  6. Step 6: Final answer
    x = 19,164.33

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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.