Home / 21,079.52-29,092.79-12,582

Finding the Fourth Proportional to 21,079.52, 29,092.79 and 12,582

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Solution

The fourth proportional to 21,079.52, 29,092.79 and 12,582 is: 17,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.52 : 29,092.79 = 12,582 : x
  2. Step 2: Convert to fraction form
    21,079.52/29,092.79 = 12,582/x
  3. Step 3: Cross multiply
    21,079.52x = 29,092.79 × 12,582
  4. Step 4: Simplify right side
    21,079.52x = 366,045,515.24
  5. Step 5: Solve for x
    x = 366,045,515.24/21,079.52
  6. Step 6: Final answer
    x = 17,364.98

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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.