Home / 21,812.08-32,712.24-9,325.90

Finding the Fourth Proportional to 21,812.08, 32,712.24 and 9,325.90

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Solution

The fourth proportional to 21,812.08, 32,712.24 and 9,325.90 is: 13,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.08 : 32,712.24 = 9,325.90 : x
  2. Step 2: Convert to fraction form
    21,812.08/32,712.24 = 9,325.90/x
  3. Step 3: Cross multiply
    21,812.08x = 32,712.24 × 9,325.90
  4. Step 4: Simplify right side
    21,812.08x = 305,071,079.02
  5. Step 5: Solve for x
    x = 305,071,079.02/21,812.08
  6. Step 6: Final answer
    x = 13,986.34

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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.