Home / 21,603.24-32,400.72-9,119.16

Finding the Fourth Proportional to 21,603.24, 32,400.72 and 9,119.16

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Solution

The fourth proportional to 21,603.24, 32,400.72 and 9,119.16 is: 13,676.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.24 : 32,400.72 = 9,119.16 : x
  2. Step 2: Convert to fraction form
    21,603.24/32,400.72 = 9,119.16/x
  3. Step 3: Cross multiply
    21,603.24x = 32,400.72 × 9,119.16
  4. Step 4: Simplify right side
    21,603.24x = 295,467,349.80
  5. Step 5: Solve for x
    x = 295,467,349.80/21,603.24
  6. Step 6: Final answer
    x = 13,676.99

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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.