Home / 21,399.04-32,086.80-6,603.88

Finding the Fourth Proportional to 21,399.04, 32,086.80 and 6,603.88

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Solution

The fourth proportional to 21,399.04, 32,086.80 and 6,603.88 is: 9,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.04 : 32,086.80 = 6,603.88 : x
  2. Step 2: Convert to fraction form
    21,399.04/32,086.80 = 6,603.88/x
  3. Step 3: Cross multiply
    21,399.04x = 32,086.80 × 6,603.88
  4. Step 4: Simplify right side
    21,399.04x = 211,897,376.78
  5. Step 5: Solve for x
    x = 211,897,376.78/21,399.04
  6. Step 6: Final answer
    x = 9,902.19

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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.