Home / 21,625.24-29,842.86-11,689.24

Finding the Fourth Proportional to 21,625.24, 29,842.86 and 11,689.24

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Solution

The fourth proportional to 21,625.24, 29,842.86 and 11,689.24 is: 16,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.24 : 29,842.86 = 11,689.24 : x
  2. Step 2: Convert to fraction form
    21,625.24/29,842.86 = 11,689.24/x
  3. Step 3: Cross multiply
    21,625.24x = 29,842.86 × 11,689.24
  4. Step 4: Simplify right side
    21,625.24x = 348,840,352.83
  5. Step 5: Solve for x
    x = 348,840,352.83/21,625.24
  6. Step 6: Final answer
    x = 16,131.17

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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.