Home / 21,401.04-29,534.82-11,969.64

Finding the Fourth Proportional to 21,401.04, 29,534.82 and 11,969.64

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Solution

The fourth proportional to 21,401.04, 29,534.82 and 11,969.64 is: 16,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.04 : 29,534.82 = 11,969.64 : x
  2. Step 2: Convert to fraction form
    21,401.04/29,534.82 = 11,969.64/x
  3. Step 3: Cross multiply
    21,401.04x = 29,534.82 × 11,969.64
  4. Step 4: Simplify right side
    21,401.04x = 353,521,162.86
  5. Step 5: Solve for x
    x = 353,521,162.86/21,401.04
  6. Step 6: Final answer
    x = 16,518.88

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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.