Home / 21,232-31,846.74-6,441.04

Finding the Fourth Proportional to 21,232, 31,846.74 and 6,441.04

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Solution

The fourth proportional to 21,232, 31,846.74 and 6,441.04 is: 9,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232 : 31,846.74 = 6,441.04 : x
  2. Step 2: Convert to fraction form
    21,232/31,846.74 = 6,441.04/x
  3. Step 3: Cross multiply
    21,232x = 31,846.74 × 6,441.04
  4. Step 4: Simplify right side
    21,232x = 205,126,126.21
  5. Step 5: Solve for x
    x = 205,126,126.21/21,232
  6. Step 6: Final answer
    x = 9,661.18

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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.