Home / 21,431.68-32,152.65-8,944.75

Finding the Fourth Proportional to 21,431.68, 32,152.65 and 8,944.75

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Solution

The fourth proportional to 21,431.68, 32,152.65 and 8,944.75 is: 13,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431.68 : 32,152.65 = 8,944.75 : x
  2. Step 2: Convert to fraction form
    21,431.68/32,152.65 = 8,944.75/x
  3. Step 3: Cross multiply
    21,431.68x = 32,152.65 × 8,944.75
  4. Step 4: Simplify right side
    21,431.68x = 287,597,416.09
  5. Step 5: Solve for x
    x = 287,597,416.09/21,431.68
  6. Step 6: Final answer
    x = 13,419.27

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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.