Home / 21,810.10-32,720.82-6,228.94

Finding the Fourth Proportional to 21,810.10, 32,720.82 and 6,228.94

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Solution

The fourth proportional to 21,810.10, 32,720.82 and 6,228.94 is: 9,345.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.10 : 32,720.82 = 6,228.94 : x
  2. Step 2: Convert to fraction form
    21,810.10/32,720.82 = 6,228.94/x
  3. Step 3: Cross multiply
    21,810.10x = 32,720.82 × 6,228.94
  4. Step 4: Simplify right side
    21,810.10x = 203,815,829.78
  5. Step 5: Solve for x
    x = 203,815,829.78/21,810.10
  6. Step 6: Final answer
    x = 9,345.02

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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.