Home / 21,614.28-32,420.21-7,568.88

Finding the Fourth Proportional to 21,614.28, 32,420.21 and 7,568.88

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Solution

The fourth proportional to 21,614.28, 32,420.21 and 7,568.88 is: 11,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.28 : 32,420.21 = 7,568.88 : x
  2. Step 2: Convert to fraction form
    21,614.28/32,420.21 = 7,568.88/x
  3. Step 3: Cross multiply
    21,614.28x = 32,420.21 × 7,568.88
  4. Step 4: Simplify right side
    21,614.28x = 245,384,641.22
  5. Step 5: Solve for x
    x = 245,384,641.22/21,614.28
  6. Step 6: Final answer
    x = 11,352.89

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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.