Home / 21,909.02-32,858.40-8,757.86

Finding the Fourth Proportional to 21,909.02, 32,858.40 and 8,757.86

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Solution

The fourth proportional to 21,909.02, 32,858.40 and 8,757.86 is: 13,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.02 : 32,858.40 = 8,757.86 : x
  2. Step 2: Convert to fraction form
    21,909.02/32,858.40 = 8,757.86/x
  3. Step 3: Cross multiply
    21,909.02x = 32,858.40 × 8,757.86
  4. Step 4: Simplify right side
    21,909.02x = 287,769,267.02
  5. Step 5: Solve for x
    x = 287,769,267.02/21,909.02
  6. Step 6: Final answer
    x = 13,134.74

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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.