Home / 21,933.79-32,902.76-6,138.81

Finding the Fourth Proportional to 21,933.79, 32,902.76 and 6,138.81

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Solution

The fourth proportional to 21,933.79, 32,902.76 and 6,138.81 is: 9,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.79 : 32,902.76 = 6,138.81 : x
  2. Step 2: Convert to fraction form
    21,933.79/32,902.76 = 6,138.81/x
  3. Step 3: Cross multiply
    21,933.79x = 32,902.76 × 6,138.81
  4. Step 4: Simplify right side
    21,933.79x = 201,983,807.46
  5. Step 5: Solve for x
    x = 201,983,807.46/21,933.79
  6. Step 6: Final answer
    x = 9,208.80

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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.