Home / 21,713.06-29,965.85-12,283.45

Finding the Fourth Proportional to 21,713.06, 29,965.85 and 12,283.45

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Solution

The fourth proportional to 21,713.06, 29,965.85 and 12,283.45 is: 16,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.06 : 29,965.85 = 12,283.45 : x
  2. Step 2: Convert to fraction form
    21,713.06/29,965.85 = 12,283.45/x
  3. Step 3: Cross multiply
    21,713.06x = 29,965.85 × 12,283.45
  4. Step 4: Simplify right side
    21,713.06x = 368,083,929.91
  5. Step 5: Solve for x
    x = 368,083,929.91/21,713.06
  6. Step 6: Final answer
    x = 16,952.19

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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.