Home / 21,532.08-32,278.96-8,381.36

Finding the Fourth Proportional to 21,532.08, 32,278.96 and 8,381.36

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Solution

The fourth proportional to 21,532.08, 32,278.96 and 8,381.36 is: 12,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,532.08 : 32,278.96 = 8,381.36 : x
  2. Step 2: Convert to fraction form
    21,532.08/32,278.96 = 8,381.36/x
  3. Step 3: Cross multiply
    21,532.08x = 32,278.96 × 8,381.36
  4. Step 4: Simplify right side
    21,532.08x = 270,541,584.19
  5. Step 5: Solve for x
    x = 270,541,584.19/21,532.08
  6. Step 6: Final answer
    x = 12,564.58

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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.