Home / 21,418.05-32,130.98-6,625.96

Finding the Fourth Proportional to 21,418.05, 32,130.98 and 6,625.96

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Solution

The fourth proportional to 21,418.05, 32,130.98 and 6,625.96 is: 9,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.05 : 32,130.98 = 6,625.96 : x
  2. Step 2: Convert to fraction form
    21,418.05/32,130.98 = 6,625.96/x
  3. Step 3: Cross multiply
    21,418.05x = 32,130.98 × 6,625.96
  4. Step 4: Simplify right side
    21,418.05x = 212,898,588.24
  5. Step 5: Solve for x
    x = 212,898,588.24/21,418.05
  6. Step 6: Final answer
    x = 9,940.15

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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.