Home / 21,219.15-29,236.10-14,133.27

Finding the Fourth Proportional to 21,219.15, 29,236.10 and 14,133.27

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Solution

The fourth proportional to 21,219.15, 29,236.10 and 14,133.27 is: 19,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.15 : 29,236.10 = 14,133.27 : x
  2. Step 2: Convert to fraction form
    21,219.15/29,236.10 = 14,133.27/x
  3. Step 3: Cross multiply
    21,219.15x = 29,236.10 × 14,133.27
  4. Step 4: Simplify right side
    21,219.15x = 413,201,624.38
  5. Step 5: Solve for x
    x = 413,201,624.38/21,219.15
  6. Step 6: Final answer
    x = 19,473.05

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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.