Home / 21,142.20-31,654.44-10,732.08

Finding the Fourth Proportional to 21,142.20, 31,654.44 and 10,732.08

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Solution

The fourth proportional to 21,142.20, 31,654.44 and 10,732.08 is: 16,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142.20 : 31,654.44 = 10,732.08 : x
  2. Step 2: Convert to fraction form
    21,142.20/31,654.44 = 10,732.08/x
  3. Step 3: Cross multiply
    21,142.20x = 31,654.44 × 10,732.08
  4. Step 4: Simplify right side
    21,142.20x = 339,717,982.44
  5. Step 5: Solve for x
    x = 339,717,982.44/21,142.20
  6. Step 6: Final answer
    x = 16,068.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.