Home / 21,509.08-32,257.28-9,028.72

Finding the Fourth Proportional to 21,509.08, 32,257.28 and 9,028.72

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Solution

The fourth proportional to 21,509.08, 32,257.28 and 9,028.72 is: 13,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.08 : 32,257.28 = 9,028.72 : x
  2. Step 2: Convert to fraction form
    21,509.08/32,257.28 = 9,028.72/x
  3. Step 3: Cross multiply
    21,509.08x = 32,257.28 × 9,028.72
  4. Step 4: Simplify right side
    21,509.08x = 291,241,949.08
  5. Step 5: Solve for x
    x = 291,241,949.08/21,509.08
  6. Step 6: Final answer
    x = 13,540.42

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1.5x scale

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.