Home / 21,350.28-29,463.24-11,790.76

Finding the Fourth Proportional to 21,350.28, 29,463.24 and 11,790.76

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Solution

The fourth proportional to 21,350.28, 29,463.24 and 11,790.76 is: 16,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.28 : 29,463.24 = 11,790.76 : x
  2. Step 2: Convert to fraction form
    21,350.28/29,463.24 = 11,790.76/x
  3. Step 3: Cross multiply
    21,350.28x = 29,463.24 × 11,790.76
  4. Step 4: Simplify right side
    21,350.28x = 347,393,991.66
  5. Step 5: Solve for x
    x = 347,393,991.66/21,350.28
  6. Step 6: Final answer
    x = 16,271.17

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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.