Home / 21,317.98-29,418.22-12,364.92

Finding the Fourth Proportional to 21,317.98, 29,418.22 and 12,364.92

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Solution

The fourth proportional to 21,317.98, 29,418.22 and 12,364.92 is: 17,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.98 : 29,418.22 = 12,364.92 : x
  2. Step 2: Convert to fraction form
    21,317.98/29,418.22 = 12,364.92/x
  3. Step 3: Cross multiply
    21,317.98x = 29,418.22 × 12,364.92
  4. Step 4: Simplify right side
    21,317.98x = 363,753,936.84
  5. Step 5: Solve for x
    x = 363,753,936.84/21,317.98
  6. Step 6: Final answer
    x = 17,063.25

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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.