Home / 21,669.20-32,507.24-9,189.28

Finding the Fourth Proportional to 21,669.20, 32,507.24 and 9,189.28

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Solution

The fourth proportional to 21,669.20, 32,507.24 and 9,189.28 is: 13,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.20 : 32,507.24 = 9,189.28 : x
  2. Step 2: Convert to fraction form
    21,669.20/32,507.24 = 9,189.28/x
  3. Step 3: Cross multiply
    21,669.20x = 32,507.24 × 9,189.28
  4. Step 4: Simplify right side
    21,669.20x = 298,718,130.39
  5. Step 5: Solve for x
    x = 298,718,130.39/21,669.20
  6. Step 6: Final answer
    x = 13,785.38

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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.