Home / 21,907.02-32,855.40-8,755.86

Finding the Fourth Proportional to 21,907.02, 32,855.40 and 8,755.86

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Solution

The fourth proportional to 21,907.02, 32,855.40 and 8,755.86 is: 13,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907.02 : 32,855.40 = 8,755.86 : x
  2. Step 2: Convert to fraction form
    21,907.02/32,855.40 = 8,755.86/x
  3. Step 3: Cross multiply
    21,907.02x = 32,855.40 × 8,755.86
  4. Step 4: Simplify right side
    21,907.02x = 287,677,282.64
  5. Step 5: Solve for x
    x = 287,677,282.64/21,907.02
  6. Step 6: Final answer
    x = 13,131.74

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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.