Home / 21,579.21-32,372.61-8,928.93

Finding the Fourth Proportional to 21,579.21, 32,372.61 and 8,928.93

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Solution

The fourth proportional to 21,579.21, 32,372.61 and 8,928.93 is: 13,394.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.21 : 32,372.61 = 8,928.93 : x
  2. Step 2: Convert to fraction form
    21,579.21/32,372.61 = 8,928.93/x
  3. Step 3: Cross multiply
    21,579.21x = 32,372.61 × 8,928.93
  4. Step 4: Simplify right side
    21,579.21x = 289,052,768.61
  5. Step 5: Solve for x
    x = 289,052,768.61/21,579.21
  6. Step 6: Final answer
    x = 13,394.97

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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.