Home / 21,376.02-29,500.64-11,816.76

Finding the Fourth Proportional to 21,376.02, 29,500.64 and 11,816.76

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Solution

The fourth proportional to 21,376.02, 29,500.64 and 11,816.76 is: 16,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.02 : 29,500.64 = 11,816.76 : x
  2. Step 2: Convert to fraction form
    21,376.02/29,500.64 = 11,816.76/x
  3. Step 3: Cross multiply
    21,376.02x = 29,500.64 × 11,816.76
  4. Step 4: Simplify right side
    21,376.02x = 348,601,982.73
  5. Step 5: Solve for x
    x = 348,601,982.73/21,376.02
  6. Step 6: Final answer
    x = 16,308.09

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Half scale
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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.