Home / 21,480.24-32,204.64-9,003.90

Finding the Fourth Proportional to 21,480.24, 32,204.64 and 9,003.90

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Solution

The fourth proportional to 21,480.24, 32,204.64 and 9,003.90 is: 13,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.24 : 32,204.64 = 9,003.90 : x
  2. Step 2: Convert to fraction form
    21,480.24/32,204.64 = 9,003.90/x
  3. Step 3: Cross multiply
    21,480.24x = 32,204.64 × 9,003.90
  4. Step 4: Simplify right side
    21,480.24x = 289,967,358.10
  5. Step 5: Solve for x
    x = 289,967,358.10/21,480.24
  6. Step 6: Final answer
    x = 13,499.26

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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.