Home / 21,305.02-29,400.96-11,873.38

Finding the Fourth Proportional to 21,305.02, 29,400.96 and 11,873.38

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Solution

The fourth proportional to 21,305.02, 29,400.96 and 11,873.38 is: 16,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.02 : 29,400.96 = 11,873.38 : x
  2. Step 2: Convert to fraction form
    21,305.02/29,400.96 = 11,873.38/x
  3. Step 3: Cross multiply
    21,305.02x = 29,400.96 × 11,873.38
  4. Step 4: Simplify right side
    21,305.02x = 349,088,770.44
  5. Step 5: Solve for x
    x = 349,088,770.44/21,305.02
  6. Step 6: Final answer
    x = 16,385.28

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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.