Home / 21,713.08-29,965.48-12,153.84

Finding the Fourth Proportional to 21,713.08, 29,965.48 and 12,153.84

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Solution

The fourth proportional to 21,713.08, 29,965.48 and 12,153.84 is: 16,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.08 : 29,965.48 = 12,153.84 : x
  2. Step 2: Convert to fraction form
    21,713.08/29,965.48 = 12,153.84/x
  3. Step 3: Cross multiply
    21,713.08x = 29,965.48 × 12,153.84
  4. Step 4: Simplify right side
    21,713.08x = 364,195,649.44
  5. Step 5: Solve for x
    x = 364,195,649.44/21,713.08
  6. Step 6: Final answer
    x = 16,773.10

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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.