Home / 21,571.68-32,366.16-6,782.88

Finding the Fourth Proportional to 21,571.68, 32,366.16 and 6,782.88

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Solution

The fourth proportional to 21,571.68, 32,366.16 and 6,782.88 is: 10,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.68 : 32,366.16 = 6,782.88 : x
  2. Step 2: Convert to fraction form
    21,571.68/32,366.16 = 6,782.88/x
  3. Step 3: Cross multiply
    21,571.68x = 32,366.16 × 6,782.88
  4. Step 4: Simplify right side
    21,571.68x = 219,535,779.34
  5. Step 5: Solve for x
    x = 219,535,779.34/21,571.68
  6. Step 6: Final answer
    x = 10,177.04

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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.