Home / 21,820.37-32,730.54-6,237.99

Finding the Fourth Proportional to 21,820.37, 32,730.54 and 6,237.99

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Solution

The fourth proportional to 21,820.37, 32,730.54 and 6,237.99 is: 9,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820.37 : 32,730.54 = 6,237.99 : x
  2. Step 2: Convert to fraction form
    21,820.37/32,730.54 = 6,237.99/x
  3. Step 3: Cross multiply
    21,820.37x = 32,730.54 × 6,237.99
  4. Step 4: Simplify right side
    21,820.37x = 204,172,781.21
  5. Step 5: Solve for x
    x = 204,172,781.21/21,820.37
  6. Step 6: Final answer
    x = 9,356.98

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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.