Home / 21,331.14-32,013.81-9,645.36

Finding the Fourth Proportional to 21,331.14, 32,013.81 and 9,645.36

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Solution

The fourth proportional to 21,331.14, 32,013.81 and 9,645.36 is: 14,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.14 : 32,013.81 = 9,645.36 : x
  2. Step 2: Convert to fraction form
    21,331.14/32,013.81 = 9,645.36/x
  3. Step 3: Cross multiply
    21,331.14x = 32,013.81 × 9,645.36
  4. Step 4: Simplify right side
    21,331.14x = 308,784,722.42
  5. Step 5: Solve for x
    x = 308,784,722.42/21,331.14
  6. Step 6: Final answer
    x = 14,475.77

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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.