Home / 21,326.82-29,443.06-14,169.02

Finding the Fourth Proportional to 21,326.82, 29,443.06 and 14,169.02

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Solution

The fourth proportional to 21,326.82, 29,443.06 and 14,169.02 is: 19,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.82 : 29,443.06 = 14,169.02 : x
  2. Step 2: Convert to fraction form
    21,326.82/29,443.06 = 14,169.02/x
  3. Step 3: Cross multiply
    21,326.82x = 29,443.06 × 14,169.02
  4. Step 4: Simplify right side
    21,326.82x = 417,179,306.00
  5. Step 5: Solve for x
    x = 417,179,306.00/21,326.82
  6. Step 6: Final answer
    x = 19,561.25

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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.