Home / 21,388-32,095.84-11,534.16

Finding the Fourth Proportional to 21,388, 32,095.84 and 11,534.16

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Solution

The fourth proportional to 21,388, 32,095.84 and 11,534.16 is: 17,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388 : 32,095.84 = 11,534.16 : x
  2. Step 2: Convert to fraction form
    21,388/32,095.84 = 11,534.16/x
  3. Step 3: Cross multiply
    21,388x = 32,095.84 × 11,534.16
  4. Step 4: Simplify right side
    21,388x = 370,198,553.89
  5. Step 5: Solve for x
    x = 370,198,553.89/21,388
  6. Step 6: Final answer
    x = 17,308.70

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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.