Home / 21,603.11-32,404.66-6,813.52

Finding the Fourth Proportional to 21,603.11, 32,404.66 and 6,813.52

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Solution

The fourth proportional to 21,603.11, 32,404.66 and 6,813.52 is: 10,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.11 : 32,404.66 = 6,813.52 : x
  2. Step 2: Convert to fraction form
    21,603.11/32,404.66 = 6,813.52/x
  3. Step 3: Cross multiply
    21,603.11x = 32,404.66 × 6,813.52
  4. Step 4: Simplify right side
    21,603.11x = 220,789,700.96
  5. Step 5: Solve for x
    x = 220,789,700.96/21,603.11
  6. Step 6: Final answer
    x = 10,220.28

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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.