Home / 21,476.84-29,637.98-12,045.61

Finding the Fourth Proportional to 21,476.84, 29,637.98 and 12,045.61

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Solution

The fourth proportional to 21,476.84, 29,637.98 and 12,045.61 is: 16,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.84 : 29,637.98 = 12,045.61 : x
  2. Step 2: Convert to fraction form
    21,476.84/29,637.98 = 12,045.61/x
  3. Step 3: Cross multiply
    21,476.84x = 29,637.98 × 12,045.61
  4. Step 4: Simplify right side
    21,476.84x = 357,007,339.85
  5. Step 5: Solve for x
    x = 357,007,339.85/21,476.84
  6. Step 6: Final answer
    x = 16,622.90

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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.