Home / 21,583.11-29,785.29-12,152.01

Finding the Fourth Proportional to 21,583.11, 29,785.29 and 12,152.01

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Solution

The fourth proportional to 21,583.11, 29,785.29 and 12,152.01 is: 16,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.11 : 29,785.29 = 12,152.01 : x
  2. Step 2: Convert to fraction form
    21,583.11/29,785.29 = 12,152.01/x
  3. Step 3: Cross multiply
    21,583.11x = 29,785.29 × 12,152.01
  4. Step 4: Simplify right side
    21,583.11x = 361,951,141.93
  5. Step 5: Solve for x
    x = 361,951,141.93/21,583.11
  6. Step 6: Final answer
    x = 16,770.11

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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.