Home / 21,608.64-32,395.68-9,305.28

Finding the Fourth Proportional to 21,608.64, 32,395.68 and 9,305.28

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Solution

The fourth proportional to 21,608.64, 32,395.68 and 9,305.28 is: 13,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.64 : 32,395.68 = 9,305.28 : x
  2. Step 2: Convert to fraction form
    21,608.64/32,395.68 = 9,305.28/x
  3. Step 3: Cross multiply
    21,608.64x = 32,395.68 × 9,305.28
  4. Step 4: Simplify right side
    21,608.64x = 301,450,873.19
  5. Step 5: Solve for x
    x = 301,450,873.19/21,608.64
  6. Step 6: Final answer
    x = 13,950.48

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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.