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Finding the Fourth Proportional to 21,600, 32,400 and 6,018.04

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Solution

The fourth proportional to 21,600, 32,400 and 6,018.04 is: 9,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600 : 32,400 = 6,018.04 : x
  2. Step 2: Convert to fraction form
    21,600/32,400 = 6,018.04/x
  3. Step 3: Cross multiply
    21,600x = 32,400 × 6,018.04
  4. Step 4: Simplify right side
    21,600x = 194,984,496
  5. Step 5: Solve for x
    x = 194,984,496/21,600
  6. Step 6: Final answer
    x = 9,027.06

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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.