Home / 21,462.28-32,199.63-8,975.86

Finding the Fourth Proportional to 21,462.28, 32,199.63 and 8,975.86

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Solution

The fourth proportional to 21,462.28, 32,199.63 and 8,975.86 is: 13,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.28 : 32,199.63 = 8,975.86 : x
  2. Step 2: Convert to fraction form
    21,462.28/32,199.63 = 8,975.86/x
  3. Step 3: Cross multiply
    21,462.28x = 32,199.63 × 8,975.86
  4. Step 4: Simplify right side
    21,462.28x = 289,019,370.93
  5. Step 5: Solve for x
    x = 289,019,370.93/21,462.28
  6. Step 6: Final answer
    x = 13,466.39

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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.