Home / 21,184.28-29,233.86-11,752.76

Finding the Fourth Proportional to 21,184.28, 29,233.86 and 11,752.76

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Solution

The fourth proportional to 21,184.28, 29,233.86 and 11,752.76 is: 16,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.28 : 29,233.86 = 11,752.76 : x
  2. Step 2: Convert to fraction form
    21,184.28/29,233.86 = 11,752.76/x
  3. Step 3: Cross multiply
    21,184.28x = 29,233.86 × 11,752.76
  4. Step 4: Simplify right side
    21,184.28x = 343,578,540.45
  5. Step 5: Solve for x
    x = 343,578,540.45/21,184.28
  6. Step 6: Final answer
    x = 16,218.56

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Double scale
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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.