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Finding the Fourth Proportional to 21,671.98, 32,504.65 and 6,878.98

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Solution

The fourth proportional to 21,671.98, 32,504.65 and 6,878.98 is: 10,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.98 : 32,504.65 = 6,878.98 : x
  2. Step 2: Convert to fraction form
    21,671.98/32,504.65 = 6,878.98/x
  3. Step 3: Cross multiply
    21,671.98x = 32,504.65 × 6,878.98
  4. Step 4: Simplify right side
    21,671.98x = 223,598,837.26
  5. Step 5: Solve for x
    x = 223,598,837.26/21,671.98
  6. Step 6: Final answer
    x = 10,317.42

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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.